Free Tools

Extract text from PDFs and images using OCR. Free online PDF to text converter.

Combine multiple PDF files into one document.

Extract pages or split PDF by range.

Convert JPG, PNG, WebP images to PDF.

Remove password protection from PDF files.

Redact sensitive information and metadata from PDFs.

Convert Word DOC/DOCX to PDF.

Convert PowerPoint PPT/PPTX to PDF.

Convert PDF to editable Word DOCX.

Rotate PDF pages 90° or 180°.

Compress and reduce PDF file size.

Extract tables from PDF to Excel or CSV.

Select and delete specific pages from your PDF file.

Drag and drop to reorder PDF pages in any order.

Add page numbers to PDF with custom position, format and style.

Add a text watermark to every page of your PDF document.

Trim margins and crop pages to remove white space or unwanted areas.

Capture documents with your camera or upload photos and convert to PDF.

Compare two PDF files side by side and spot visual differences.

Upload a PDF form and fill in fields directly in your browser. Download the completed form instantly — no sign-up needed.

Convert PDF forms into beautiful, mobile-friendly HTML web forms. Share via link or embed on your website.

Convert a static PDF into a fillable form by adding text fields, checkboxes, and dropdowns.

Recover forgotten PDF passwords by trying common patterns used by payroll, billing, and HR systems. Runs locally — your file never leaves your device.

Edit PDF files directly in your browser. Add text, images, annotations, rotate, delete, and reorder pages. Download the edited PDF instantly.

Convert a webpage or URL to PDF.

Convert HTML to PDF with CSS styling.

Convert Markdown to PDF or HTML.

Draw your signature and embed it into any PDF. Sign documents digitally without printing or scanning.

Extract images from multiple PDFs in bulk. Perfect for content creation and digital asset management.

Convert multiple PDFs to images in bulk. Great for archiving, presentations, and web publishing.

Convert PDF pages to PNG or JPG images with adjustable DPI and quality.

Convert PDF documents to clean, structured Markdown with heading detection, lists, and formatting. 100% browser-based.

Upload a PDF or PowerPoint and review your slides with a countdown timer. Perfect for presentation rehearsal, timed study, and exam prep.

Your all-in-one PDF toolkit. Access merge, split, compress, convert, edit, sign, watermark, OCR, translate, and 15+ more operations from one place.

Convert text between UPPER, lower, Title, camelCase, snake_case and more.

Live word count, character count, and reading time analytics.

Generate a 3D rotating word cloud where word size reflects frequency. Export as image or share via link.

Sort lines as text, numbers, or by length. A–Z, 0–9, shortest first.

Prepend or append text to each line online.

Randomize order of lines or shuffle characters per line.

Trim lines, remove empty lines, dedupe, collapse whitespace.

Extract all email addresses from any text, HTML, or document content.

Extract all URLs and links from any text, HTML, or document content.

Format numbers, round, sum/min/max/avg, numbers to words.

Random words, random characters, number sequences.

Convert text to ASCII art with multiple font styles.

Convert text to numbered, bulleted, CSV, JSON, HTML, and Markdown lists.

Compare two texts and highlight differences.

Encode and decode URL, Base64, HTML entities online.

Write your post once and preview it with character counts for Twitter/X, LinkedIn, Instagram, Threads, and Facebook.

Full-featured online text editor with file management, text transforms, cleanup tools, find and replace, and more.

Analyze text readability with Flesch-Kincaid, Gunning Fog, SMOG, and Coleman-Liau scores. See what grade level your text targets.

Find and remove hidden characters like zero-width spaces, non-breaking spaces, and other invisible Unicode characters.

Write and auto-save personal notes in Markdown with live preview, image embedding, and YouTube support.

Generate placeholder text in classic, hipster, business, tech, or pirate styles.

Render text as a retro LED dot matrix display with custom colors and styles.

Transform normal text into creepy zalgo glitch text using combining Unicode diacritical marks.

Flip, mirror, reverse, and bubble-ify your text using Unicode character mappings.

Translate text to Morse code and back with audio playback and visual dot-dash display.

Remove quoted reply history, signatures, and forwarding headers from email threads. Get clean text.

Transcribe speech to text in real-time using your microphone.

Combine multiple audio files into one.

Remove background noise from audio.

Trim MP3 and WAV files with waveform visualization. Set precise start and end points, preview, and download the trimmed audio.

Change playback speed of MP3 and WAV files. Speed up or slow down audio and export the result.

Your all-in-one audio toolkit. Voice tools, music makers, audio editors, converters, and AI audio — all in one place.

A fast, source-available screen recorder you run entirely on your own computer. No upload, no sign-up, no tracking.

Combine multiple video files into one.

Extract audio from video and save as MP3 or WAV.

Replace or mix audio into any video file.

Convert video files to WebM format in your browser.

Convert MP3 audio files to lossless WAV format.

Convert WAV audio files to compressed MP3 format.

Edit SRT subtitle timing and text.

Create GIFs from video.

Combine images into animated GIFs.

Compress video and reduce file size.

All-in-one video toolkit — trim, crop, merge, compress, convert, add subtitles, create GIFs, and more.

Upload a short video, auto-detect all faces, pick which ones to blur. 100% client-side — best for clips under 60 seconds.

Upload a screen recording and add pan and zoom effects. Create professional tutorial-style focus animations with keyframe-based control.

Add shapes, text, arrows, and images to videos with timeline control and export.

Visually crop video edges with drag handles. Presets for TikTok, YouTube, Instagram, and more.

Cut and extract any portion of a video. Set start and end points to keep just the clip you need.

Speed up or slow down any video. Choose from 0.25x to 4x speed with audio pitch correction.

Play any video backwards. Create fun reverse effects and boomerang loops.

Remove audio from any video in one click. Keep the video quality, strip the sound, download in seconds — 100% browser-based.

Build vertical 9:16 short videos for Instagram Reels, TikTok, and YouTube Shorts. Upload clips, trim, add text overlays, music, and export.

Upload a video to inspect resolution, frame rate, codec, bitrate, duration, audio channels, volume, waveform, and more. 100% browser-based.

Remove silent gaps and dead air from video recordings. Detect silences, preview timeline, and export a shorter video automatically.

Click on faces to blur them in video. AI tracks each face automatically as the video plays. Scroll to resize, right-click to remove. Export when done.

Master Generative AI concepts, models, techniques, and terminology using the Leitner spaced repetition system.

Add AI-generated voice overs to videos using ElevenLabs. Text to speech overlay with background music.

Convert LaTeX to rendered math and vice versa.

Convert between CSV and JSON data formats with smart type detection.

Convert SQL CREATE/INSERT statements to JSON or CSV data.

Convert CSV or tabular data to LaTeX table code.

Upload an Excel file (.xlsx/.xls) and convert it to CSV format instantly.

Upload a CSV file or paste CSV text and convert it to Excel (.xlsx).

Paste CSV data and generate interactive line, bar, scatter, pie, doughnut or area charts.

Upload a CSV file and instantly get summary stats, auto-generated charts, sortable data table and column analysis.

Pretty-print, minify, validate, and sort JSON keys online.

Format, validate, and minify YAML online.

Format, validate, and minify XML online.

Beautify and format SQL queries.

Minify or beautify JavaScript, CSS, HTML.

Convert between JSON and YAML formats.

Write and preview Markdown with live rendering.

Build and test regular expressions.

Decode and inspect JSON Web Tokens.

Test HTTP APIs with custom requests.

Test webhooks with a temporary URL.

Estimate tokens and cost across AI providers.

See how temperature affects AI text generation.

Create reusable prompt templates with {{variable}} placeholders. Save, load, and render prompts instantly with live preview.

Visual builder for OpenAI, Anthropic, and JSON Schema function calling schemas. Build, validate, and export tool definitions.

Visual workflow builder for AI agent pipelines. Design, connect, and export agent flow diagrams.

Generate Model Context Protocol server boilerplate for Python or TypeScript. Define tools, resources, and prompts.

Split text into chunks for RAG pipelines. Fixed size, paragraph, sentence, or Markdown header splitting with overlap.

Visualize text chunk similarity in 2D/3D. TF-IDF, n-gram, and word overlap methods with k-means clustering.

Validate AI JSON output against a schema. Visual schema tree, color-coded errors, OpenAI/Anthropic presets.

Compare costs across 11+ AI models. Input tokens, output tokens, request volume to monthly cost.

Plan API batch execution within rate limits. Generates Python async code with optimal timing.

Paste an OpenAPI spec and generate typed API clients in Python, JS, TypeScript, cURL, or Go.

Format raw change lists into beautiful Keep a Changelog format. Supports semantic versioning.

Simulate retry strategies — exponential backoff, linear, jitter. Visualize timing and success rates.

Estimate cache hit rates based on TTL, request patterns, and cache size. Optimize your caching strategy.

Estimate AWS service costs.

Calculate API rate limits and throughput.

Convert between binary, decimal, octal, and hex.

Encode and decode Base64 strings and files.

Convert epoch timestamps to human-readable dates.

Perform AND, OR, XOR, NOT, shift operations.

Generate SHA-256, MD5, SHA-1, SHA-512 hashes.

Generate UUIDs (v4) in bulk.

Generate random names, emails, addresses, and more.

Calculate CRC-16 and CRC-32 checksums.

Convert between bytes, KB, MB, GB, TB, PB with binary and decimal standards.

Convert XML to JSON and JSON to XML with attribute and array support.

Generate harmonious color palettes from a base color.

Optimize and minify SVG code, clean up paths.

Find beautiful font combinations for your designs.

Create favicons from text, emoji, or initials.

Check color contrast ratios for WCAG accessibility compliance.

Parse and explain cron expressions with next run times.

Convert curl commands to fetch, Python, Go, PHP, and more.

Generate placeholder images with custom dimensions and text.

Search and convert HTML entities, symbols, and special characters.

Generate realistic test data: fake names, addresses, phone numbers for software testing.

Convert JSON to TypeScript interfaces, Go structs, C# classes, and more.

Break down complex SQL queries into human-readable logic.

Find and replace personal data with realistic fake placeholders.

Generate k6, Artillery, or Locust load test scripts.

Translate complex regular expressions into plain English.

Generate ASCII art banner.txt for your Spring Boot application startup.

Generate docker-compose.yml with multiple services, ports, volumes, and environment variables.

Generate production-ready nginx.conf for reverse proxy, static sites, PHP, and load balancers.

Generate comprehensive .gitignore files for any stack — languages, IDEs, OS, and frameworks.

Generate professional README.md files with badges, installation, usage, and more.

Generate a stunning GitHub profile README with badges, stats, skills, and social links.

Generate .htaccess rules for redirects, GZIP compression, caching, security headers, and CORS.

Generate ~/.ssh/config with multiple host entries, identity files, and forwarding options.

Generate tailwind.config.js with custom colors, fonts, breakpoints, and plugins.

Generate package.json with scripts, dependencies, metadata, and license.

Generate Dockerfile and .dockerignore for Node, Python, Java, Go, and more.

Generate a GDPR-compliant cookie consent banner with customizable design. Copy the HTML/CSS/JS code.

Convert text or images to ASCII character art with multiple font styles.

Test regular expressions with live matching, groups table, and auto-explanation.

Beautify and format SQL queries with syntax highlighting. Supports MySQL, PostgreSQL, and SQL Server.

Upload an image and see how it looks through different types of color blindness for accessibility testing.

Create custom progress bars with live preview. Copy HTML/CSS or download SVG.

Explore color harmonies on an interactive wheel and export palettes as CSS, Tailwind, or SCSS.

Map task dependencies as a simple directed graph. Identify critical paths and bottlenecks.

Calculate allowed downtime for SLA targets. See how many minutes of downtime 99.9% vs 99.99% allows.

Monitor website uptime 24/7 with scheduled checks. Verify specific text on pages and get email alerts when sites go down or recover.

Build and test API requests visually. No-code alternative to Postman and cURL. Generate code snippets.

Write markdown and present it as a beautiful slide deck. Separate slides with --- and go fullscreen. 100% offline.

Upload a ZIP of source code and get detailed stats — lines, characters, languages, biggest files, media files, and more. 100% offline.

Master all 16 AWS Leadership Principles using the Leitner spaced repetition system. Flashcard-style learning with progressive mastery.

Master AWS Cloud Practitioner exam concepts using the Leitner spaced repetition system. Flashcard-style learning across all exam domains.

Learn AWS Cloud Practitioner concepts in a fun kid-friendly way with analogies and simple language. Perfect for ages 10-14 preparing for the CLF-C02 exam.

Master AWS Solutions Architect Associate exam concepts using the Leitner spaced repetition system. 40 key concepts across all exam domains.

100 guided tutorials covering the most common AWS services from Level 100 to 400. Filter by difficulty, search topics, and track your reading progress.

Generate professional PDF invoices.

Extract data from receipts with OCR.

Add film grain, noise, and texture effects to your photos.

Generate QR codes for URLs and text.

Compress files into ZIP archives.

Spin a colorful wheel to pick a random name.

Resize multiple images in batch.

Boost image resolution and quality in bulk. Perfect for print prep and digital art enhancement.

Instantly remove backgrounds from multiple images in bulk. Perfect for e-commerce, marketing, and design.

Colorize multiple black and white photos in bulk. Ideal for restoring old memories and preparing images for professional printing.

Erase distracting elements from photos in seconds. Remove background clutter, watermarks, and unwanted objects in bulk.

Crop multiple images instantly. Perfect for social media, product photos, and web layouts.

Compress multiple images for faster loading and easier sharing. Lossless and lossy modes supported.

Convert multiple images between formats in bulk. Great for web, social media, and design work.

Flip multiple images horizontally or vertically in bulk. Create mirror effects and fix orientations.

Quickly anonymize photos by blurring faces in bulk. Great for privacy in social media and journalism.

Quickly blur entire images in bulk. Ideal for privacy, visual effects, and reducing distractions.

Create transparent images in bulk. Perfect for e-commerce, design, and web development.

Create lightweight image placeholders in bulk. Optimize loading for better user experience.

One-click background blurring for multiple images in bulk. Enhance focus and privacy.

Create eye-catching profile pics instantly. Auto face detection and background removal.

Analyze facial features and face symmetry. Private, in-browser processing for security.

Convert color photos to black and white with adjustable grayness.

Flip, mirror, and rotate your images with one click.

Apply stunning filters and effects to your photos.

Add text watermarks to protect your images.

Crop and resize images with preset aspect ratios.

Resize photos for 1x1, 2x2, passport, and visa ID sizes. Print-ready layout.

Apply color tints, duotone, and creative color effects to your photos.

Compress, resize and reduce image and PDF file size with adjustable quality.

Convert images between PNG, JPEG, WebP, and BMP formats.

Create memes with custom top and bottom text.

Blur or pixelate sensitive areas in your images.

Edit PNGs: click to erase, flood fill, paint pixels, crop, and resize — 100% in your browser.

Upload any image, get a full favicon pack: .ico, webmanifest, 8 PNGs, and a ready-to-paste HTML snippet. 100% client-side.

Remove metadata from photos for privacy.

Split images into grid tiles for Instagram and more.

Compare two images with an interactive slider.

Arrange multiple photos into beautiful collage layouts.

Add gradient backgrounds, shadows, and rounded corners to screenshots.

Add borders, frames, and rounded corners to your images.

Convert photos into retro pixel art style.

Inspect file metadata and EXIF.

View or remove EXIF data from images.

Upload any image and extract the dominant color palette with HEX, RGB, and HSL codes.

Upload a group photo and automatically detect and crop individual faces into separate files.

Design beautiful quote images in seconds. Pick a template, type your quote and author, style with fonts, colors, and backgrounds, export as PNG.

Create multi-slide carousel posts for Instagram and LinkedIn. Add text per slide, pick a layout, export all slides as a ZIP.

Upload images to inspect resolution, megapixels, color depth, EXIF camera data, dominant colors, histogram, and more. Compare up to 3 images side by side.

Resize images for Instagram, Facebook, Twitter, LinkedIn, TikTok, YouTube, and Pinterest.

Resize multiple images at once. Set exact dimensions, percentage, or max width/height. Download as ZIP.

Transform photos into stunning low-poly art using Delaunay triangulation and edge detection.

Combine multiple images into one — horizontal, vertical, or grid layout with gap and background color.

Click anywhere on an image to pick colors. Shows HEX, RGB, HSL with magnifier and color history.

Upload an image and see platform-specific safe zones. Avoid text/logos being cropped on different platforms.

Your all-in-one image toolkit. Resize, crop, compress, convert, filter, watermark, remove backgrounds, redact, and more — all from one place.

Detect faces in real-time via webcam or uploaded images. Shows bounding boxes, 68-point landmarks, expressions with confidence, and estimated age and gender.

Apply artistic effects to your photos. Choose from Oil Painting, Watercolor, Pencil Sketch, Pop Art, Pixel Art, Vintage, Comic Book, and Neon Glow styles.

Check password strength and crack time.

Generate SHA-256, MD5, SHA-512 hashes.

Compute and verify file hashes.

Check if a URL is safe or suspicious.

Generate robots.txt for your website.

Generate a privacy policy for your website.

Generate MD5, SHA-1, SHA-256, SHA-512 hashes from passwords.

50+ pre-built regex patterns for SQL injection, XSS, API keys, and more.

Encode and decode Base64, URL, HTML, Hex, Binary, ROT13, and ASCII formats.

Convert cURL commands to Python, JavaScript, Java, PHP, Go, Ruby, and C# code.

Browse 100+ well-known ports with service names, protocols, and risk levels.

Calculate network address, broadcast, usable hosts, wildcard mask from any IP/CIDR.

Paste any hash and instantly detect its type — MD5, SHA1, SHA256, bcrypt, NTLM and more.

Configure HTTP security headers and get config for Nginx, Apache and Express.js.

Interactive penetration testing checklist based on OWASP and PTES methodology.

Build nmap commands visually — scan type, ports, timing and flags.

Free Meta Tag Analyzer — Analyze any webpage's SEO meta tags including title, description, Open Graph, Twitter Cards, and robots directives.

Free Keyword Density Checker — Analyze keyword frequency, density, and distribution in any text or webpage. Optimize content for target keywords.

Free Sitemap Generator — Crawl your website and generate a sitemap.xml file. Help Google discover and index all your pages faster.

Free SERP Preview Tool — See exactly how your page will appear in Google search results. Optimize your title tags and meta descriptions for maximum clicks.

Check if a URL has a properly set canonical tag.

Trace the full redirect chain for any URL (301, 302, 307).

Free Broken Link Checker — Scan any webpage and find all broken links instantly. Fix 404 errors that hurt your SEO rankings and user experience.

Validate JSON-LD structured data on any webpage.

Preview how your URL looks when shared on Facebook and Twitter.

Inspect HTTP response headers and security headers.

Check if a webpage is optimized for mobile devices.

Analyze internal and external links on any page.

Compare meta tags across multiple competitor URLs.

Free Page Speed Analyzer — Test your website's loading speed and Core Web Vitals. Get performance scores and actionable optimization tips to rank higher.

Free Online SEO Audit Report — Get your website's SEO score in 10 seconds. Analyze meta tags, headings, links, performance, and get actionable recommendations.

Free Competitor Finder Tool — Discover who competes with your website in search results. Find competitor domains, shared keywords, and ranking gaps.

Convert text to URL-friendly slugs for SEO.

Preview how your page will appear in Google search results. Optimize title, URL, and description.

Enter your URL once and run every SEO check from one dashboard — audit, speed, meta tags, broken links, schema, mobile-friendly, keywords, and more.

Calculate percentages, percentage change, and more.

Add, subtract, multiply, and divide fractions.

Advanced scientific calculator with trig, log, and more.

Find the least common multiple and greatest common factor.

Check if a number is prime and find prime factors.

Calculate factorial, permutations, and combinations.

Solve quadratic equations and graph parabolas.

Calculate slope, distance, and midpoint between two points.

Calculate mean, median, mode, and range for a data set.

Calculate standard deviation and variance.

Convert between standard numbers and scientific notation with engineering notation.

Calculate the exact difference between two dates, add or subtract days, and count business days.

Solve proportions, find missing values, simplify ratios, and visualize proportion bars.

Calculate the missing side of a right triangle with visual SVG diagram.

Calculate volume and surface area for cubes, spheres, cylinders, cones, pyramids, and more.

Solve triangles with law of sines and cosines, compute trig functions with unit circle visualization.

Calculate Pi digits, memorize Pi, and search for number sequences within Pi.

Interactive unit circle with all trig values, click-to-set angle, and reference angle display.

Standard calculator with comma-separated numbers. Supports up to 100-digit precision for basic arithmetic.

Visualize 3D geometric shapes. Rotate, unfold to nets, and learn properties.

Encrypt and decrypt text using the classic Caesar shift cipher with visual alphabet wheel and brute force.

Encrypt and decrypt text using the Rail Fence zigzag cipher with visual pattern display.

Encrypt and decrypt text using the Vigenere polyalphabetic cipher with full 26x26 table.

Convert text to and from NATO phonetic alphabet. Alpha Bravo Charlie with audio pronunciation.

Hide secret messages inside images using LSB encoding. Optional password encryption.

Extract hidden plain text, EXIF metadata, and LSB-steganographic messages from images, video, and audio files.

Mathematically unbreakable encryption using XOR with a random key.

Crack substitution ciphers by analyzing letter, bigram, and trigram frequencies.

Map connections between people, places, and organizations with an interactive force-directed graph.

Build detailed investigation timelines with events, evidence, and gap analysis.

Score and prioritize threats on a 5x5 likelihood vs impact risk grid.

Encode and decode secret messages using any text as a shared key. A classic espionage technique.

Encode and decode messages in Cold War-era number station broadcast format with audio playback.

Hide secret messages inside innocent-looking text using steganographic techniques.

Add, multiply, transpose, and invert matrices.

Calculate the determinant of a matrix.

Factor polynomials and find roots.

Calculate limits of mathematical expressions.

Calculate derivatives of functions step by step.

Calculate definite and indefinite integrals.

Plot mathematical functions and equations.

Solve systems of linear equations.

Calculate return on investment and profit margins.

Calculate your break-even point.

Calculate loan payments and amortization schedule.

Calculate DCF and net present value.

Calculate monthly recurring revenue growth.

Calculate the impact of customer churn on revenue.

Find the best meeting time across multiple timezones.

View time across cities. Add cities, pick a reference, scroll -1hr / +1hr.

Compare prices per unit to find the best deal.

Build tracked campaign URLs with UTM parameters and saved presets.

Design professional business cards with custom layouts, colors, and logos. Download as PNG or PDF.

Add gradient backgrounds, shadows, rounded corners, and device frames to screenshots.

Calculate statistical significance, conversion rates, p-values, and confidence intervals for A/B tests.

Create professional HTML email signatures with live preview and multiple layouts.

Generate a QR code for your WiFi network so guests can scan to connect instantly.

Generate Code128, Code39, EAN-13, and EAN-8 barcodes. Download as PNG.

Calculate business days between dates, add/subtract business days, and account for holidays.

Calculate the number of call center agents needed to meet your service level target. Input call volume, handle time, and desired service level.

Build custom call center QA scorecards with weighted criteria. Score calls, track agent performance, and export reports.

Calculate Customer Satisfaction Score and Net Promoter Score from survey data. Visualize trends and benchmark against industry.

Pre-built email templates for follow-ups, apologies, confirmations, escalations, and more. Fill in the blanks and copy with one click.

Compare transaction fees across PayPal, Stripe, Square, Braintree, Adyen, and more.

Side-by-side feature comparison of popular payment gateways.

Find out how much you could save by switching payment processors.

Validate IBAN numbers and parse country, bank code, branch and account number using modulo 97.

Calculate exact age, employment tenure, and probation periods. Shows years, months, days breakdown.

Generate organizational charts from a list of names and roles. Export as PNG or SVG.

Design simple approval workflows with steps, approvers, and conditions. Visualize the flow as a diagram.

Calculate work hours, overtime, and total pay with daily entries. Export to CSV.

Detect scheduling conflicts in employee shifts. Paste shift data and find overlaps instantly.

Convert between units of length, weight, temperature, speed, area, volume, time, and energy.

Convert HEIC/HEIF images from iPhone to JPG format with adjustable quality.

Convert SVG vector graphics to PNG with custom dimensions, scale, and background.

Convert clothing sizes between US UK EU AU and JP with measurements for each size.

Convert between cups, tablespoons, teaspoons, milliliters, ounces, grams, and pounds. Includes ingredient-specific conversions for flour, sugar, butter, and more.

Convert WebP images to MP4 video. Set duration, framerate, resolution, and background color. 100% offline.

Learn new words through context clues — from elementary to doctorate level.

Generate a balanced study schedule for your subjects.

Calculate semester and cumulative GPA from your grades.

Calculate what grade you need on the final exam.

Plan your day with time blocks for maximum productivity.

Master key characters, themes, quotes, and plot points from classic novels using the Leitner spaced repetition system.

Master every character, theme, quote, symbol, and lesson from Paulo Coelho's The Alchemist using the Leitner spaced repetition system.

Master characters, spells, houses, magical creatures, and lore from the Harry Potter universe using the Leitner spaced repetition system.

Visualize molecules in 3D. 20+ pre-built molecules with ball-and-stick, space-filling, and wireframe modes.

Interactive 3D solar system. Watch planets orbit the Sun with real relative speeds and sizes.

Spin an interactive 3D globe. Click countries, plot locations, and explore the world.

Explore the world with search, markers, distance measurement, and area drawing. Free interactive map with satellite and topo views.

Focus timer with work/break intervals for productive studying.

Countdown to your exams with study milestone tracking.

Calculate ideal bedtimes based on wake-up times and age.

Track fasting windows with countdown timer.

Time contractions and visualize labor progression with interval tracking.

Calculate age-appropriate bedtimes and sleep schedules for children.

Create animated countdown timers for holidays and events. Save multiple countdowns and share as images.

Set a countdown timer with quick presets or custom time. Big display with animated progress ring and alarm sounds.

View current moon phase, monthly lunar calendar, and upcoming full and new moon dates. Includes illumination percentage and zodiac position.

Generate APA, MLA, and Chicago style citations.

Create structured essay and paper outlines.

Create and study digital flashcards.

Extract dates from syllabus text and export to calendar.

Plan and divide your lecture time across topics proportionally.

Analyze question difficulty and discrimination indices from student score data.

Practice for your US driver's license written exam with comprehensive multiple-choice questions across all DMV topics.

Practice numerical, verbal, and logical reasoning with timed multiple-choice questions.

Test your pattern and matrix reasoning with Mensa-style visual puzzles.

Analyze patterns, sequences, and relationships. Score, reasoning accuracy %, and difficulty level.

Quantitative reasoning: arithmetic, percentages, ratios, and data interpretation.

Comprehension and logical interpretation of written text. Comprehension score and reading grade.

Pattern recognition without language or numbers. Shape sequences and diagram transformations.

Visualize objects and spatial relationships. 3D rotation, folded shapes, cube patterns.

Detect small differences and errors. Compare texts, numbers, or images.

Recall sequences of numbers, words, or images shown briefly. Memory retention and recall accuracy.

Evaluate arguments and identify logical conclusions. Critical reasoning and decision-making rating.

Measure WPM, error rate, and typing accuracy with timed paragraphs.

Scenario-based puzzles and optimal solutions. Problem-solving score and strategic reasoning level.

Answer 30 scenario-based questions to discover your corruption index. 200-question bank with two choices each - the ethical path or the questionable one.

Measure your EQ across 5 dimensions: self-awareness, self-regulation, motivation, empathy, and social skills with 25 scenario questions.

Ishihara-style color blindness screening with 12 dot-pattern plates. Tests red-green and blue-yellow deficiency.

Test your reflexes over 5 rounds. Click when the screen turns green and see your average, best, worst, and percentile.

Measure your reading speed in WPM with comprehension questions. 3 difficulty levels with adjusted scores.

Practice 15 workplace scenarios used in hiring. Pick the most effective response and get scored on professional judgment.

Test your money knowledge across budgeting, investing, credit, taxes, and retirement with 25 questions.

Assess your technology skills across hardware, software, internet, security, and digital communication with 30 questions.

Discover your MBTI-style personality type with 60 forced-choice questions across 4 dimensions. Get your 4-letter type with description.

Find out if you are a Visual, Auditory, Reading/Writing, or Kinesthetic learner with 24 VARK questions and personalized study tips.

Discover your Holland Code (RIASEC) with 48 questions. Get matched careers with salary ranges and growth outlook.

Generate printable math practice worksheets.

Generate printable spelling practice worksheets.

Interactive multiplication table drills and practice.

Generate random quizzes on various topics.

Create fill-in-the-blank exercises from text.

Generate crossword puzzles from word lists.

Generate printable word search puzzles.

Calculate how much paint you need for walls and ceilings.

Calculate tiles needed for floors and walls with waste factor.

Estimate concrete volume for slabs, footings, and columns.

Calculate lumber board feet and project material needs.

Calculate room area, perimeter, and flooring needs.

Estimate materials and cost for fencing projects.

Calculate roofing materials for your roof area.

Get a customized emergency checklist based on disaster type, household size, pets, and special needs.

Real estate neighborhood rating tool. Drop a pin on any address and get an instant livability score based on nearby schools, healthcare, transit, shopping, food, and safety. Drag the map to rescore in real time — perfect for home-buying, rental decisions, and relocation. Uses OpenStreetMap (free) or Google Maps (your key).

Design room layouts in 3D. Drag furniture, set dimensions, and switch between 2D and 3D views.

Draw walls in 2D and see your floor plan in 3D. Add doors, windows, and rooms.

Calculate fuel costs for trips and daily commutes.

Calculate monthly car payments with trade-in and down payment.

Estimate your vehicle's depreciation over time.

Convert and compare tire sizes and dimensions.

Convert between MPG, km/L, and L/100km fuel efficiency.

Estimate fuel, toll, and total road trip costs.

Estimate your vehicle's market value based on year, make, mileage, and condition with depreciation projections.

Calculate mortgage payments with taxes, PMI, and insurance.

Plan debt payoff using snowball or avalanche method.

Calculate your ideal emergency fund amount.

Plan and calculate college savings goals.

Estimate retirement savings and monthly income.

Calculate compound growth on investments over time.

Track monthly income, expenses, and savings goals in one dashboard.

Calculate how expenses should be divided among family members.

Track progress toward savings goals like vacations, education, or home purchases.

Determine fair allowance based on chores and age.

Estimate travel costs for the whole family.

Convert between world currencies with live exchange rates. Supports 30+ currencies.

Convert salary between hourly, daily, weekly, bi-weekly, monthly, and annual periods.

Estimate net salary from gross using 2024 US federal tax brackets and state taxes.

Convert cryptocurrency to fiat currency with live prices from CoinGecko.

Visualize salary budget breakdown with adjustable tax, VAT, spending categories, and feasibility indicators.

Compare up to 3 loan offers side by side with monthly payments, total interest, total cost, and break-even analysis.

Calculate stock trade profits including commissions, fees, and capital gains tax with ROI analysis.

Calculate cryptocurrency trade profits including exchange fees, gas fees, and tax.

Calculate compound interest with optional monthly contributions and see year-by-year growth chart.

Calculate Equated Monthly Installment with amortization schedule, pie chart and PDF download.

Calculate Annual Percentage Rate including fees and compare two loan options side by side.

Master money from zero to financial independence. 24 phases, 50+ interactive lessons with visual diagrams — budgeting, saving, investing, credit, taxes, retirement, FIRE, insurance, estate planning, and more.

Calculate your ideal W-4 withholding to avoid owing taxes or getting too large a refund. Estimate federal income tax and plan your paycheck.

Compare the total cost of renting versus buying a home over time. Factor in mortgage, taxes, maintenance, investment returns, and appreciation.

Calculate tips and split bills instantly. Supports custom tip percentages, multiple people, tax exclusion, and round-up options.

Compare how your money grows across S&P 500, real estate, gold, crypto, bonds, and more. Chart growth over time with custom amounts.

Generate a weekly meal plan based on family size and dietary preferences.

Create optimized grocery lists sorted by category.

Find recipes based on ingredients you already have.

Automatically distribute chores among family members fairly.

Track completed chores, points earned, and weekly progress.

Combine school, work, and activities into one weekly calendar.

Break school projects into tasks with a timeline view.

Generate optimal daily study schedules with break reminders.

Track and limit daily screen time for children by device.

Discover baby names by origin, meaning, and popularity.

Get personalized gift suggestions by relationship, age, and occasion.

Generate categorized packing lists for any type of trip.

Organize activities and budget for family trips.

Create emergency contacts, evacuation plans, and medical info cards.

Track medications and schedules for the whole family.

Get fun activity ideas based on age, type, and available time.

Generate weekend plans based on family interests and budget.

Visualize your family ancestry with an interactive tree diagram.

Generate a 7-day breakfast, lunch and dinner plan for your family with dietary preferences.

Build, organize, and save your family grocery lists sorted by category with cost estimates.

Enter ingredients you have on hand and discover matching recipes you can make.

Track and manage your family's daily screen time by device type with visual charts.

Discover unique baby names with meanings and origins from around the world.

Find the perfect gift for any occasion, relationship, and budget.

Generate creative and fun names for dogs, cats, birds, fish, rabbits and other pets.

Discover random dishes with full ingredients and step-by-step cooking instructions.

Create beautiful greeting cards with custom backgrounds, text, and fonts. Download as PNG or PDF.

Generate a complete school supply list by grade level with estimated costs. Compare prices, track what you have, and export your shopping list.

Calculate Body Mass Index and health category.

Estimate body fat percentage using measurements.

Calculate daily macros for your fitness goals.

Calculate calories burned by activity and duration.

Plan weekly workout splits for your training goals.

Calculate your due date and track pregnancy milestones week by week.

Convert dog or cat years to human years with breed-accurate calculations.

Scale any recipe up or down for the number of servings you need.

Calculate pace, finish time, or distance for any running race. Supports 5K, 10K, half marathon, marathon, and custom distances with split tables.

Calculate your pet's real age in human years using science-based formulas. Supports dogs by size, cats, rabbits, hamsters, and more.

Discover fascinating stats about your life — days alive, heartbeats, breaths, miles through space, and more. Shareable results.

Check blood type compatibility for transfusions and pregnancy. See donation matches, Rh factor risks, and parent-child inheritance.

Calculate your daily calorie target, weekly deficit, macro split, and get a personalized meal plan to reach your goal weight.

Calculate internet bandwidth needs and data usage.

Calculate solar panel savings and payback period.

Calculate electricity costs for appliances.

Plan and budget your custom PC build.

Interactive checklist for smart home setup.

Set daily screen time budgets per app, log your actual usage, and see where your time is going.

Test your internet download speed with real server measurement and activity comparison.

Calculate your ideal freelance hourly and project rates.

Calculate gross, operating, and net profit margins.

Score and validate your business idea with a checklist.

Generate simple freelance and service contracts.

Learn everything about becoming a Virtual Assistant. Master essential skills, find clients, set rates, and track your readiness to start earning.

Estimate the market value of any domain name based on length, TLD, keywords, and brandability.

Generate GDPR/CCPA-compliant cookie policy and banner text.

Generate professional Non-Disclosure Agreements with customizable terms and parties.

Track and visualize your menstrual cycle patterns, symptoms, and predictions.

Predict your fertile window and ovulation day based on cycle data.

Visualize your baby's development week by week with size comparisons and milestones.

Monitor healthy weight gain during pregnancy with recommended range tracking.

Track and visualize fetal movement patterns with kick counting sessions.

Track prenatal nutrition with radar charts and trimester-specific recommendations.

Track your child's developmental milestones with visual timeline and progress charts.

Monitor stress levels and self-care habits with burnout risk tracking and personalized tips.

Track mood and energy patterns across your menstrual cycle phases.

Track your recovery journey after childbirth with sleep, pain, and mood monitoring.

Track feeding patterns with timeline charts and frequency analysis.

Monitor your baby's growth with WHO percentile charts for weight, height, and head circumference.

Track and visualize your baby's sleep cycles with day/night pattern analysis.

Visualize and balance household task distribution with workload tracking.

Paste Lua code and get a beginner-friendly AI explanation of what it does.

Generate creative Roblox usernames in aesthetic, gamer, funny, and more styles.

Create aesthetic and themed display names with Unicode formatting for Roblox.

Generate unique group names with slogans for Roblox clans and communities.

Convert images to Minecraft block pixel art with build blueprints and block counts.

Design custom Minecraft skins with templates, pixel editing, and downloadable PNG export.

Visualize Minecraft worlds from seeds with biome maps and structure locations.

Generate step-by-step house building plans with material lists for Minecraft.

Design custom Minecraft banners with pattern layering and color selection.

Build complex Minecraft commands with an easy visual interface.

Calculate optimal enchantment combinations and XP costs for your gear.

Calculate total raw materials needed for any Minecraft crafting recipe chain.

Complete guide to all Minecraft mobs with stats, drops, and combat strategies.

Design and simulate redstone circuits with interactive visual builder.

Play the classic 9x9 number puzzle with multiple difficulty levels.

Play X and O against an unbeatable AI opponent.

Flip cards to find matching pairs using your memory.

Repeat the growing color sequence from memory.

Slide and merge numbered tiles to reach 2048.

Slide numbered tiles into the correct order.

Move disk stacks between pegs following the rules.

Fill the grid with 0s and 1s following the rules. Like Sudoku but binary.

Solve short logic puzzles and riddles. Deduce the answer from clues.

Guess the hidden word before running out of lives.

Solve crossword clues to fill in the tech-themed grid.

Unscramble shuffled letters to find the word.

Build as many words as you can from given letters.

Guess the 5-letter word in 6 tries, Wordle-style.

Measure your typing speed and accuracy.

Change one letter at a time to reach the target word.

Memorize and retype text from memory.

Form words using given letters with a required center.

Type real code snippets as fast as you can. Practice Java, Python, JavaScript, and more.

Find the mistake hidden in text or code snippets. Train your eye for detail.

Write regex patterns to match highlighted text. Progressive difficulty from beginner to expert.

Find and fix the error in broken JSON. Train your debugging skills.

Spot the bug in code snippets. Covers JavaScript, Python, Java, and SQL.

Guess the HTTP status code from the description, or the description from the code.

Guess what an API endpoint does from its path and method. Test your REST API knowledge.

Match words with their synonyms as fast as you can. Build vocabulary and speed.

Fix grammar, spelling, and punctuation errors in sentences. Train your editing skills.

Guess the company from a text description of their logo. No images needed!

Can you tell if text was written by AI or a human? Test your detection skills.

Guess the 5-letter word in 6 tries. New word every day. Green, yellow, gray clues.

Control a growing snake to collect food without hitting walls.

Arrange falling blocks to clear lines in this classic puzzle.

Bounce a ball to destroy bricks with your paddle.

Click the moles before they disappear.

Test how fast you can react to a color change.

Click as fast as you can in the time limit.

Click targets as quickly and accurately as possible.

Match the color name, not the display color.

Stop the timer as close to the target as possible.

Tap to fly through pipes without crashing.

Avoid falling objects for as long as you can.

Stack blocks as precisely as possible.

Jump between platforms to reach new heights.

Guide the ball through the maze to the goal.

Pick genres and discover what to watch next. Combine multiple genres for personalized results.

Ask a question and receive a mystical answer.

Get a randomly generated humorous roast.

Choose between two tricky scenarios.

Get random truth questions or dare challenges.

Play the classic hand game against the computer.

Draw a picture and see if others can guess it.

Guess the phrase from emoji clues.

Test your knowledge with multiple choice questions.

Build a tech startup from zero to IPO. Hire devs, ship features, pitch investors, acquire competitors, and go public.

Sort tasks by priority as fast as you can. Drag and drop items into the right order.

Combine two emojis to discover fun mashup concepts and matching Unicode emoji.

Create single-elimination tournament brackets with click-to-advance matchups. Supports 4 to 64 teams.

Calculate parlay odds, payouts, implied probabilities, expected value, and risk level for multi-leg sports bets.

Find possible five-letter Wordle words by entering green, yellow, and gray letter clues.

Get ranked player lists by position with tiers for NFL, NBA, and MLB fantasy drafts.

Track movies you want to watch, rate them, filter, sort, and export your watchlist.

Generate random mazes with multiple algorithms, solve with animated pathfinding, and download as PNG.

Realistic electric fan with spinning blades, oscillation, white noise, and sleep timer.

Think of a question, open the book, and receive wisdom from 100+ answers with animated book flip.

Generate soothing noise for focus, sleep, or relaxation with multiple noise types and waveform visualization.

Classic Matrix-style falling character rain with customizable speed, color, density, and characters.

Turn-based business sim where you run a virtual company through 20 quarters with pricing, marketing and staffing decisions.

Classic Pong arcade game. Play against AI or a friend in local 2-player mode.

Classic Space Invaders arcade game. Defend Earth from waves of alien invaders with shields and bonus UFOs.

Naval destroyer game. Drop depth charges to destroy submarines while evading torpedoes in this classic arcade naval battle.

Pilot your submarine through enemy waters. Dodge depth charges, fire torpedoes at destroyers, and collect supplies to survive.

Command your fleet from Scout Fighter to Planet Destroyer. Equip 21 weapons, upgrade 15 ship classes, and conquer the galaxy.

Texas Hold'em Poker — play against AI or friends at the same device. 2-6 players with smart AI opponents.

Isometric desert missile defense game. Launch attacks and intercept incoming missiles with your Iron Dome battery.

Solve math problems as fast as you can. Addition, subtraction, multiplication, and division.

Progressive mental math — each correct answer adds complexity. How far can you go?

Guess quantities, distances, and statistics. Closest guess scores highest.

Defend your castle from waves of enemies! Place towers, upgrade defenses, and survive as long as you can. Top-view tower defense game.

Build a Dungeons and Dragons 5e character — choose race, class, background, roll ability scores, and get a complete character sheet.

5-reel slot machine with wilds, jackpots, auto-spin, and sound effects. Virtual chips, no real money.

Play classic 21 against the dealer. Hit, stand, double down, or split. 6-deck shoe with realistic rules.

European roulette wheel with full betting board. Bet on numbers, colors, odds, evens, dozens, and more.

Bet on Player, Banker, or Tie in this classic Punto Banco card game with Big Road scoreboard.

Roll the dice! Pass line, don't pass, field bets, and place bets with animated dice.

Jacks or Better video poker with hold/draw, paytable, and double-up gamble feature.

Pick up to 10 lucky numbers, watch 20 drawn. Auto-play and animated number reveals.

Buy scratch cards and scratch to reveal prizes. Match 3 symbols to win big!

The simplest card game. Your card vs the dealer — higher card wins. Go to War on ties!

Guess if the next card is higher or lower. Build a streak for escalating multipliers!

Endless 3D runner — dodge obstacles, collect coins, and survive as long as you can!

Endless 3D road racing — dodge oncoming traffic and race at high speed!

Roll a marble ball on narrow platforms, collect gems, and avoid falling off!

Classic mine-clearing puzzle. Left click to reveal, right click to flag. Beginner, Intermediate, and Expert modes.

Klondike Solitaire card game. Build foundations from Ace to King. Click to select and move cards.

Aim and shoot bubbles to match 3 or more of the same color. Clear the board to advance levels.

Swap adjacent gems to match 3 or more in a row. Chain combos for bonus points.

Click to earn, buy upgrades, watch numbers grow forever. Cookie clicker style idle game.

Drop discs to connect 4 in a row. Play against AI with multiple difficulty levels.

Guide the frog across busy roads and rivers. Dodge traffic and hop on logs to survive.

Slice flying fruit with your finger. Avoid bombs and don't let fruit fall.

Classic arcade shooter. Rotate, thrust, and blast asteroids in deep space.

Eat all the dots, avoid ghosts, grab power pellets. The classic arcade maze game.

Play checkers against AI. Jump and capture opponent pieces to win.

Rotate pipe pieces to connect source to drain before time runs out.

Threes-style number merging puzzle. Slide tiles to combine and score.

Endless brick breaker with powerups. Multi-ball, lasers, wide paddle and more.

Tap through rotating color obstacles. Match your ball color to pass.

Navigate a procedurally generated 3D maze in first-person view. Find the glowing exit portal.

Jump across floating platforms, collect stars, and survive in this endless 3D platformer.

Fly a plane through rings in the sky. Collect points with streak bonuses.

Place and upgrade towers to defend against waves of enemies in this 3D strategy game.

Command your tank, destroy enemies, collect powerups, and survive arena battles in 3D.

Play 9 holes of 3D mini golf with realistic physics. Drag to aim and set power. Water hazards, sand traps, and windmill obstacles.

10-frame 3D bowling with realistic pin physics. Position, throw, and add spin for strikes and spares.

Classic 8-ball billiards in 3D. Two-player local multiplayer with full pocket and collision physics.

Cast your line into a peaceful 3D lake. Catch different fish species and build your collection!

Shred ramps, grind rails, and chain trick combos in a 3D skate park!

Explore procedural dungeons in first person. Fight monsters, find loot, and descend deeper!

Sprint across rooftops in first person. Jump, slide, wall-run, and collect coins!

Race your speedboat through buoy checkpoints on choppy waters. Hit ramps for big air!

Shoot hoops in 3D! Drag to aim and set power. Build streaks for score multipliers.

Time your swing to crush home runs! Face fastballs and curveballs from the pitcher.

Take penalty kicks against an AI goalkeeper, then defend as the keeper!

Slide through corners, rack up drift combos, and set the highest score on a closed circuit!

Crush cars, do flips off ramps, and rack up insane combo points in this endless monster truck game!

Survive waves of zombies in a 3D arena. Shoot, reload, find ammo, and stay alive!

Draw your bow, account for wind and gravity, and hit the bullseye at increasing distances!

A new brain teaser every day. Math, word scramble, patterns, logic, and trivia. Build streaks!

Get your daily fortune, lucky numbers, horoscope reading, and mood of the day. New every day!

Adopt and care for your virtual pet! Feed it, play with it, and keep it happy. It grows over days.

Click to earn coins, buy upgrades, and watch your empire grow! Numbers go up forever.

Classic Klondike Solitaire. Drag and drop cards to build foundation piles from Ace to King.

Classic Minesweeper. Click to reveal, right-click to flag. Clear the board without hitting a mine!

Aim and shoot bubbles to match 3+ of the same color. Clear the board to win!

Enter two names and discover your compatibility! Fun algorithm with detailed analysis.

Master all 66 books of the Bible using the Leitner spaced repetition system. Learn key themes, authors, and famous verses.

Reserve chapel, meeting rooms, and church facilities. Manage schedules, detect conflicts, and export bookings. 100% offline.

Convert dates and times to ISO 8601, Unix timestamp, US, EU, Asian, and custom formats instantly.

Drag-and-drop task board with columns, swimlanes, activity tracking, and team sharing.

Prioritize tasks with high, medium, and low urgency. Drag to reorder, track completed and deleted items. Signed-in users: list saved to your account.

Place your screenshots in realistic phone, laptop, tablet, and desktop frames. Perfect for portfolios and presentations.

Create a beautiful link-in-bio page like Linktree. Add your links, customize colors, and download the HTML.

Create eye-catching YouTube thumbnails with custom text, backgrounds, and overlays.

Track and manage student participation in real-time with +/- buttons, sorting, and CSV export.

Generate printable attendance sheets with student names and date columns.

Generate multiple randomized exam versions with shuffled questions and answer keys.

Distribute course topics across a semester calendar with weekly session dates.

Estimate crop profits, total costs, revenue, and profit per hectare for any crop.

Calculate fertilizer quantity and suggested application schedule for your field.

Calculate total seed requirements and estimated cost by crop and planting method.

Estimate total harvest yield and gross income from your crops.

Get crop-specific watering recommendations based on soil type and growth stage.

Calculate exact pesticide and water amounts for your spray tank.

Calculate daily and weekly feed requirements for chickens, pigs, goats, cows and more.

Track daily egg production, sales, damage rates and running totals.

Track daily milk production and income from cows or goats.

Track and categorize all farm expenses with running totals and category breakdown.

Check if your soil pH is suitable for your crop and get adjustment advice.

Calculate feed cost breakdown per animal including daily and total costs.

Track farm supplies and stock levels with low-stock alerts.

Calculate containers needed for your harvest with visual representation.

Plan smart crop rotations for healthier soil and better yields.

Calculate daily feed requirements and costs for your fish pond.

Record and track your farm product sales with totals and filtering.

Estimate your irrigation pumping costs per hectare.

Track crop and animal disease symptoms with severity indicators.

Pre-built daily task checklists by farm type with progress tracking.

Compare crop prices across markets and find the best selling option with net income analysis.

Calculate break-even selling price and harvest amount for your farming costs.

Calculate loan repayments with full amortization schedule for farm financing.

Generate a planting timeline with key farming dates, fertilizer schedule and irrigation.

Assess weather-related risks and get precaution reminders for your crops.

Estimate harvest and income losses from pest damage on your farm.

Plan workforce needs and estimate labor costs for farm tasks.

Calculate carbon-to-nitrogen ratio for optimal composting mix.

Track and schedule vaccinations for farm animals with due date alerts.

Compare crop yields between seasons to track farm performance.

Plot points, lines, circles, rectangles, triangles and polygons on an interactive coordinate grid.

Plot 3D surfaces from mathematical equations with interactive rotation and zoom.

Plot polar curves like roses, cardioids and spirals on a polar coordinate grid.

Visualize Normal, Binomial, Poisson, Exponential, Uniform and Chi-squared distributions.

Create proportional Venn diagrams with 2 or 3 sets showing overlap counts.

Generate and visualize audio waveforms with sine, square, sawtooth and triangle waves.

Visualize geographic data density as a heatmap on an interactive map.

Plot GPS coordinates on an interactive map with route polyline and distance calculation.

Create beautiful horizontal timelines from events and dates with custom colors.

Visualize network relationships with a force-directed graph and draggable nodes.

Fit linear, polynomial, exponential or logarithmic regression curves with equation and R² value.

Visualize matrix data as a color-coded heatmap with multiple color schemes.

Render candlestick, OHLC bar and line charts from stock price data.

Create radar spider charts with dynamic data points. Download as PNG or SVG.

Generate flowcharts from text syntax with auto-layout boxes diamonds and arrows.

Create interactive sunburst charts from hierarchical data with hover tooltips and PNG export.

Create interactive mind maps from indented text. Drag nodes, zoom, pan, and export as PNG. Radial and tree layouts with color themes.

Create stunning 3D bar charts, pie charts, and scatter plots. Rotate and export as PNG.

Track your job applications, statuses, follow-ups, and contacts. All data stored locally in your browser.

Compare salaries adjusted for cost of living between 30 major US cities.

Interactive guide for filling out W-4, W-9, I-9, and other US employment forms.

Quick reference for employment laws across all 50 US states — minimum wage, at-will status, PTO, and more.

Prepare for employer background checks with checklists and know-your-rights guides.

Estimate your weekly unemployment benefits by state with eligibility requirements.

Complete caregiver training from beginner to professional. 9 phases covering foundations, health, core skills, safety, specialized care, home environment, professional development, and advanced topics.

Log and track patient vitals — temperature, pulse, respiration, blood pressure. Out-of-range readings flagged automatically. Export history as CSV.

Assess pressure ulcer (bedsore) risk using the clinical Braden Scale. 6 factors, instant score, and risk-based prevention recommendations.

Build structured shift-handover reports for caregivers and nurses. Situation-Background-Assessment-Recommendation format. Printable, shareable, saved locally.

Upload your resume once and unlock the full career toolkit — evaluate, rewrite, ATS check, cover letter, interview prep, LinkedIn builder, and salary coaching.

Check if a company has sponsored H1B visas. Based on US DOL disclosure data.

Browse H1B visa sponsors by industry. Filter, sort, and compare approval rates and salaries across 150+ companies.

Browse cap-exempt H1B employers — universities, research institutions, hospitals, and government labs. No lottery required.

Explore all pathways to US permanent residency — EB-1, EB-2 NIW, PERM, family-based, DV lottery, and more.

Upload your CV for AI-assisted matching or answer step-by-step. Optional fiancé/spouse/family ties. Get ranked US visa options with match scores.

Self-assess your O-1 extraordinary ability visa eligibility against the 8 USCIS criteria.

Evaluate your EB-2 National Interest Waiver eligibility using the Dhanasar three-prong test.

Check current priority dates by category and country of birth with wait time estimates.

Calculate USCIS filing fees, attorney costs, and total expenses for any immigration process.

Practice all 100 official USCIS civics test questions with quiz, flashcard, and practice modes.

Check if you qualify for US citizenship and calculate your earliest filing date.

Get a complete document checklist for any immigration process — H-1B, I-485, N-400, and more.

Comprehensive B1/B2 visa guide with document checklists, DS-160 tips, interview preparation, and common mistakes to avoid.

Select your priorities — healthcare, career, weather, and more — and get personalized country recommendations with migration pathways.

See immigration wait times by country of birth with historical movement charts.

Check if your country has an E-2 treaty with the US and assess your investment eligibility.

Browse immigration law firms by visa type — H1B, EB-2, EB-3, O-1, NIW, PERM. Compare specialties, locations, and ratings.

Browse staffing agencies that sponsor and place foreign workers — nurses, teachers, engineers, IT, and more — with EB-2, EB-3, or H-1B visas.

Calculate total USCIS filing fees, attorney costs, and dependent fees for any US immigration process.

Practice all 100 official USCIS civics test questions with quiz, flashcard, and practice modes.

Check your eligibility for Australian skilled visas. Calculate points, explore visa subclasses (189, 190, 491, 482, 186), and get recommendations.

Map family relationships to the correct petition category (IR, F1–F4) with priority date estimates and processing timelines.

Calculate your Comprehensive Ranking System (CRS) score for Canadian permanent residency through Express Entry.

Check if you meet the 70-point threshold for a UK Skilled Worker visa. Calculate points across mandatory and tradeable criteria.

Explore German immigration pathways — Job Seeker visa, EU Blue Card, Skilled Worker permit, and the new Chancenkarte opportunity card.

Find countries offering digital nomad and remote work visas. Match your profile to the best options by income, duration, cost of living, and tax benefits.

Check eligibility, processing times, and get a complete document checklist for sponsoring your spouse or partner for Canadian permanent residency.

Check if you qualify for a UK Ancestry visa based on your Commonwealth citizenship and UK-born grandparent.

Calculate your points for New Zealand Skilled Migrant Category residence visa under the simplified 6-point system.

Plan your Schengen visa application — check visa-free access, calculate 90/180 day stay limits, get document checklists, and find the correct embassy.

Answer a few questions about your background and get personalized recommendations for which immigration pathways and tools are right for you.

Check if the US sponsor meets the 125% federal poverty guideline for family-based immigration. Includes joint sponsor and asset calculations.

Practice common questions asked at the US Embassy Manila for immigrant and tourist visa interviews with coaching tips.

Track all required Philippine documents for US immigration — PSA certificates, NBI clearance, medical exam, and more. Printable checklist.

Compare US states by Filipino community size, cost of living, job market, weather, and Filipino amenities like Jollibee.

Side-by-side comparison of rent, groceries, healthcare, transport, and utilities between PH and US cities.

Plan what to bring in your balikbayan box with weight tracking, carrier comparison, customs rules, and packing checklist.

Compare USD to PHP transfer rates and fees across Wise, Remitly, Western Union, Xoom, GCash, and more.

Generate formatted P&L statements with revenue, COGS, and operating expenses.

Generate creative business name ideas with domain suggestions.

Track daily and weekly habits with a visual calendar grid, streaks, and completion stats.

Set goals with milestones, track progress with visual bars, and countdown to deadlines.

60 lessons from beginner to expert — hand rankings, pot odds, bluffing, GTO strategy, bankroll management and more. Quizzes included.

Learn chess from beginner to expert. 7 levels of bite-sized lessons with audio narration, interactive diagrams, and XP progression.

Build road networks with lanes, intersections, and traffic lights. Watch realistic vehicle behavior with car-following physics.

Simulate pedestrian movement through city streets. Place buildings, sidewalks, crosswalks, and watch crowd dynamics with social force physics.

Spawn ragdolls and objects, drag them around, and watch chaotic 2D physics in action with Matter.js.

Drop cubes, balls, cylinders and watch them collide in a realistic 3D physics world powered by Cannon.js and Three.js.

Evidence-based PHQ-9 depression screening with real-time scoring. Answer 9 clinically validated questions to assess your current mood state.

GAD-7 based anxiety screening with real-time scoring. 7 clinically validated questions to assess generalized anxiety disorder symptoms.

MBI-based burnout assessment covering emotional exhaustion, depersonalization, and personal accomplishment. For working professionals.

PSS-10 based perceived stress scale. 10 questions to measure how stressed you really are, scored 0-100.

PSQI-based sleep quality assessment covering sleep latency, duration, disturbances, and daytime dysfunction.

WHO ASRS-based adult ADHD screening. 6 clinically validated questions to assess attention deficit hyperactivity disorder risk.

UCLA-3 based loneliness assessment. Quick screening to measure feelings of social isolation and disconnection.

Rosenberg Self-Esteem Scale based assessment. 10 classic questions measuring self-worth and confidence.

PC-PTSD-5 based trauma screening. 5 clinically validated questions to assess post-traumatic stress symptoms.

Daily mood tracker with emoji picker, notes, tags, and a visual chart of your mood over time. All data stored privately on your device.

STAXI-inspired anger assessment. 10 questions on triggers, frequency, and coping to evaluate anger management skills.

Measure your EQ across self-awareness, empathy, social skills, and self-regulation. 20 research-based questions.

CD-RISC based resilience assessment. How well do you bounce back from adversity? 10 validated questions.

GQ-6 based gratitude scale. 6 questions measuring your capacity for gratitude and appreciation.

SWLS-based life satisfaction assessment. 5 classic questions on how satisfied you are with life overall.

Measure cognitive and affective empathy. 15 questions on understanding and sharing others' feelings.

ECR-based attachment style assessment. Discover if you're secure, anxious, avoidant, or fearful-avoidant.

12 questions on people-pleasing, boundaries, and enabling behaviors. Identify codependent patterns.

Discover your communication style: passive, aggressive, passive-aggressive, or assertive. 16 questions.

SPIN-inspired social anxiety assessment covering fear, avoidance, and physiological symptoms.

10 questions on trust, communication, respect, and boundaries to evaluate your relationship health.

Based on the Pure Procrastination Scale. 12 questions on task avoidance, delay, and deadline management.

10 questions on boundaries, overwork, personal time, and disconnecting to assess your work-life balance.

Clance IP Scale inspired. 10 questions on self-doubt, fear of exposure, and difficulty internalizing success.

8 questions on choice overload, avoidance, and decision quality to measure decision fatigue levels.

Frost MPS-inspired assessment. Distinguish healthy striving from maladaptive perfectionism across 10 questions.

10 questions on screen addiction, doomscrolling, FOMO, and notification anxiety. How healthy is your digital life?

MAAS-inspired mindfulness scale. 10 questions on present-moment awareness and autopilot behavior.

ProQOL-inspired assessment for caregivers and helping professionals. 10 questions on secondary trauma and burnout.

10 questions on body satisfaction, comparison, and avoidance behaviors. Evaluate your body image health.

PG-13 inspired prolonged grief screening. 10 questions to identify when grief may benefit from professional support.

Adaptive 10-minute diagnostic — find out which grade level to start at. Alternates math and ELA questions and recommends a starting grade.

Multiple choice review quizzes for Kindergarten covering Math, Science, English Language Arts, and Social Studies with 640+ questions and 3 choices per question.

Multiple choice review quizzes for Grade 1 covering Math, Science, English Language Arts, and Social Studies with 640+ questions and 3 choices per question.

Multiple choice review quizzes for Grade 2 covering Math, Science, English Language Arts, and Social Studies with 640+ questions and 3 choices per question.

Multiple choice review quizzes for Grade 3 covering Math, Science, English Language Arts, and Social Studies with 800+ questions and 3 choices per question.

Multiple choice review quizzes for Grade 4 covering Math, Science, English Language Arts, and Social Studies with 800+ questions.

Multiple choice review quizzes for Grade 5 covering Math, Science, English Language Arts, and Social Studies with 800+ questions.

Multiple choice review quizzes for Grade 6 covering Math, Science, English Language Arts, and Social Studies with 800+ questions.

Multiple choice review quizzes for Grade 7 covering Math, Science, English Language Arts, and Social Studies with 800+ questions.

Multiple choice review quizzes for Grade 8 covering Math, Science, English Language Arts, and Social Studies with 800+ questions.

Multiple choice review quizzes for Grade 9 covering Algebra, Biology, Chemistry, Physics, World History, and more with 800+ questions.

Multiple choice review quizzes for Grade 10 covering Quadratics, Trigonometry, Chemistry, Physics, World History, and more with 800+ questions.

Multiple choice review quizzes for Grade 11 covering Pre-Calculus, Trigonometry, Logarithms, Chemistry, Physics, US History, and more with 800+ questions.

Multiple choice review quizzes for Grade 12 covering Calculus, Linear Algebra, Physics, Organic Chemistry, Astronomy, World Literature, and more with 800+ questions.

Practice for college entrance exams with 3000 questions across Math, Science, English, Abstract Reasoning, Social Studies, and Filipino. 30 categories covering all major subjects.

Practice for the SAT with 1000 questions across Math and Reading & Writing. Covers Algebra, Advanced Math, Geometry, Reading Comprehension, Grammar, Vocabulary, and more.

Practice for the ACT with 600 questions across all 4 sections: English, Math, Reading, and Science. Covers Grammar, Algebra, Geometry, Prose Fiction, Data Interpretation, and more.

Practice for the Philippine Civil Service Exam with 750 questions across Verbal, Numerical, Analytical, General Information, and Clerical Ability.

Practice for the Licensure Examination for Teachers with 1500 questions across General Education and Professional Education.

Practice for the Nursing Licensure Examination with 1500 questions across Nursing Practice, Community Health, and Professional Ethics.

Practice for the CPA Licensure Examination with 1500 questions across Accounting, Auditing, Taxation, and Business Law.

Practice for the Criminology Board Exam with 1200 questions across Criminal Law, Criminalistics, Crime Detection, and Corrections.

Practice for Engineering Board Exams with 1200 questions across Math, Sciences, and ME/CE/EE disciplines.

Practice for the Medical Technology Board Exam with 1200 questions across Clinical Chemistry, Hematology, Microbiology, and Blood Banking.

Practice for the Pharmacist Board Exam with 1200 questions across Pharmaceutical Chemistry, Pharmacology, and Pharmacy Practice.

Practice for the Social Work Board Exam with 1000 questions across Social Work Practice, Policy, Research, and Ethics.

Practice for the NCLEX-RN with 1500 questions across all 4 client needs categories. Application-level questions for US nursing licensure.

Practice for the GRE with 900 questions across Verbal Reasoning, Quantitative Reasoning, and Analytical Writing concepts.

Practice for TOEFL and TOEIC with 1000 questions across Reading, Grammar, Vocabulary, and Business English.

Practice for the Architect Licensure Exam with 1200 questions across Design, History, Building Tech, Laws, and Utilities.

Practice for the Real Estate Broker Exam with 1000 questions across Property Laws, Appraisal, Finance, and Brokerage Practice.

Practice for the Dentist Board Exam with 1200 questions across Oral Anatomy, Pathology, Operative Dentistry, and Prosthodontics.

Practice for the Psychometrician Board Exam with 1000 questions across Psychological Testing, Assessment, and Psychology Foundations.

Practice for the Radiologic Technology Board Exam with 1000 questions across Radiologic Physics, Positioning, and Special Imaging.

Practice for the Physical and Occupational Therapy Board Exam with 1200 questions across Anatomy, Therapeutic Exercises, and Rehabilitation.

Practice for the Customs Broker Exam with 1000 questions across CMTA, Tariff Classification, Valuation, and Trade Procedures.

Practice for the Marine Engineer Board Exam with 1000 questions across Marine Engines, Ship Systems, Safety, and Maritime Regulations.

Practice for the Civil Engineering Board Exam with 1200 questions across Mathematics, Hydraulics & Geotechnical, Structural Engineering, and Design & Construction.

Practice for the JLPT N5 (beginner) with 500 questions covering Vocabulary, Grammar, Reading Comprehension, and Kanji.

Interactive Japanese vocabulary trainer with audio pronunciation. 12 categories, 360+ words across greetings, numbers, food, travel, verbs and more.

Interactive French vocabulary trainer with audio pronunciation. 12 categories, 360+ words across greetings, numbers, food, travel, verbs and more.

Interactive Spanish vocabulary trainer with audio pronunciation. 12 categories, 360+ words across greetings, numbers, food, travel, verbs and more.

Interactive Bisaya (Cebuano) vocabulary trainer with audio pronunciation. 12 categories, 360+ words across greetings, numbers, food, travel, verbs and more.

Interactive Filipino (Tagalog) vocabulary trainer with audio pronunciation. 12 categories, 360+ words across greetings, numbers, food, travel, verbs and more.

Interactive Korean vocabulary trainer with audio pronunciation. 12 categories, 360+ words across greetings, numbers, food, travel, verbs and more.

Interactive Mandarin Chinese vocabulary trainer with audio pronunciation. 12 categories, 360+ words with pinyin across greetings, numbers, food, travel, verbs and more.

Interactive German vocabulary trainer with audio pronunciation. 12 categories, 360+ words across greetings, numbers, food, travel, verbs and more.

Create beats with a 16-step drum sequencer. Toggle pads, adjust BPM and swing, use presets, and export as WAV.

Generate random melodies in any key and scale. Adjust tempo, octave range, and play instantly for songwriting inspiration.

Build and play chord progressions in any key. Hear common progressions used in pop, jazz, blues, and more.

Generate ambient lo-fi beats with rain, vinyl crackle, and mellow chords. Perfect for studying, focus, and relaxation.

Instant soundboard with 30 synthesized sound effects across notifications, UI, comedy, game, and musical categories.

Roll dice for random BPM, time signature, instruments, genre, and mood. Creative constraints to spark new ideas.

Visual and audio metronome with adjustable BPM, time signatures, accent patterns, tap tempo, and quick presets.

Mix rain, thunder, fireplace, birds, ocean, and more. 12 channels of procedural ambient sound.

Endless procedurally generated lo-fi beats for studying or relaxing. No ads, no interruptions.

Play a 2-octave piano keyboard with customizable waveforms, ADSR envelope, filter, reverb, and recording. Use mouse, touch, or computer keyboard.

Learn and review for the Australian Computer Society ICT Architect certification. 175 questions across 7 SFIA-based domains.

Practice for the Project Management Professional (PMP) certification exam. 200 questions across all domains with detailed explanations.

Discover your primary love language. Answer 30 questions to find out how you express and receive love — Words, Acts, Gifts, Time, or Touch.

Generate relevant hashtags for Instagram, Twitter, LinkedIn, and TikTok. Smart topic detection with popular, niche, and branded tag styles.

Plan and track your wedding expenses by category. Set a total budget, add line items, monitor spending, and export to CSV.

Manage your wedding guest list with RSVP tracking, meal preferences, table assignments, and headcount stats.

Design your event seating chart with round, rectangle, and banquet tables. Assign guests, track open seats, and print or export.

Calculate US military base pay, BAH, BAS, and total compensation by rank and years of service. Includes tax estimates and pay progression.

Calculate your combined VA disability rating using the official bilateral factor and whole-person math. See monthly compensation amounts.

Calculate your military physical fitness test score for Army ACFT, Marine PFT, Navy PRT, and Air Force PT.

Build a 72-hour emergency bug out bag checklist organized by category with weight tracking, priority levels, and printable list.

Visual step-by-step guide to 20 essential knots for camping, climbing, sailing, fishing, and survival with difficulty ratings.

Interactive step-by-step first aid guidance for choking, bleeding, burns, CPR, fractures, heat stroke, allergic reactions, and seizures.

Type text and render it in 3D with extrusion, materials, lighting, and rotation. Export as PNG.

Upload STL or OBJ files and view them in interactive 3D with Phong shading. Rotate, zoom, inspect.

Create 3D product packaging mockups. Apply artwork to boxes, cans, books, or bags. Export as PNG.

Upload a logo and spin it on a 3D cube, sphere, or cylinder. Export as PNG or animated GIF.

Create beautiful animated generative art with flow fields, particles, spirals, fractals, and more. Interactive mouse control and PNG export.

Generate QR codes with 3D depth effect. Raised blocks, sunken, or rounded pillars. Export as PNG.

Build an offender profile with MO, signature, victimology, and geographic analysis. Criminal Minds style.

Plot crime locations on a grid and calculate the probable anchor point (home/work base) of the offender.

Structured victim analysis form for criminal profiling. Demographics, routine activities, risk assessment, and connections.

Check if an extradition treaty exists between two countries. View conditions, exceptions, and legal details.

Which countries have no extradition treaties? Explore Interpol cooperation levels and MLAT agreements.

What rights do suspects have when arrested in different countries? Compare police caution requirements worldwide.

Forensic calculations — blood spatter angle, time of death estimation, and decomposition timeline.

Calculate bullet trajectory, velocity, drop, energy, and effective range for common calibers.

Build a case timeline with events, evidence, and witnesses. Organize and visualize the sequence of events.

Track evidence items, handlers, storage locations, and maintain chain of custody integrity.

Learn fingerprint patterns — loops, whorls, and arches. Interactive visual guide with quiz.

Look up statute of limitations by crime type and jurisdiction. US states, federal, and comparison mode.

Calculate federal sentencing guidelines range based on offense level and criminal history category.

Felony vs misdemeanor classifications by state. Understand crime categories, classes, and potential penalties.

Log activities across the week, visualize routines on a heatmap, and detect behavioral patterns.

Build a facial composite sketch by selecting features. Canvas-based line-art style with skin tone.

Generate operation names, agent aliases, project codenames, and asset designations in military, mythological, or tech styles.

Decode license plate formats by country. Visual plate rendering, region codes, and format rules.

Scan public GitHub repos for exposed API keys, tokens, passwords, and credentials. 25+ secret patterns detected.

Scan GitHub repos for known vulnerable dependencies in package.json, pom.xml, requirements.txt, and more. 50+ CVEs checked.

Scan GitHub repos for security misconfigurations: CORS, CSRF, debug mode, insecure cookies, SQL injection, eval(), weak crypto, and more.

Scan GitHub repos for license compliance. Detect project license, parse dependencies, and flag incompatible license combinations.

Analyze GitHub repository health with a score and grade. Checks for README, LICENSE, CI/CD, tests, docs, and more.

Scan GitHub repos for hardcoded private IPs, localhost references, staging URLs, internal domains, and non-HTTPS endpoints.

Scan GitHub repos for committed .env files, docker-compose passwords, SSH keys, certificates, and config files with exposed credentials.

Analyze GitHub repository size, language breakdown, top largest files, and detect binary bloat or committed build artifacts.

Scan GitHub repositories for duplicate code blocks across multiple source files. Find refactoring opportunities.

Analyze contributor activity, commit patterns, bus factor, and coding schedules for any public GitHub repository.

Scan GitHub repos and extract API endpoint definitions from Express, Spring Boot, Flask, Django, FastAPI, Rails, Go, Laravel, and ASP.NET.