Overtooled
Frictionless Processing
Math & Finance
- Calculator - Calculator with keyboard shortcuts, history, and memory
- Unit Converter - Convert length, weight, temperature, volume, and more
- Percentage Calculator - Calculate percentages, increases, decreases, and more
- Tip / Split Bill Calculator - Calculate tips and split bills among any group size
- Discount Calculator - Calculate sale prices, savings, and final cost after discount
- Mortgage Calculator - Calculate monthly payments with full amortization schedule
- Loan Calculator - Calculate payments for auto, personal, and student loans
- Graphing Calculator - Plot functions with a TI-84 style graphing interface
- Number Base Converter - Convert numbers between binary, decimal, hex, and octal
- Salary to Hourly Converter - Convert between annual salary and hourly wage instantly
- GPA Calculator - Calculate semester or cumulative GPA from your grades
- Prime Number Checker - Check if a number is prime and see its factorization
- Fraction / Decimal Converter - Convert fractions to decimals, simplify, and work with mixed numbers
- Modulo Calculator - Calculate remainders (X mod Y) with step-by-step work
- Compound Interest Calculator - Calculate investment growth with compound interest and regular contributions
- Sales Tax Calculator - Calculate sales tax on purchases or reverse-calculate the pre-tax price
- Investment Return Calculator - Calculate ROI, annualized returns, and total gains on investments
- Fibonacci Levels Calculator - Calculate Fibonacci retracement and extension levels for stock trading technical analysis
- Savings Goal Calculator - Calculate how long to reach a savings target with regular deposits
- Roman Numeral Converter - Convert between standard numbers and Roman numerals instantly
- Cooking Unit Converter - Convert between cups, tablespoons, grams, milliliters, and ounces
Text Tools
- Word & Character Counter - Count words, characters, sentences, and estimate reading time
- Lorem Ipsum Generator - Generate Lorem Ipsum placeholder text for designs and mockups
- Case Converter - Convert text to uppercase, lowercase, title case, camelCase, and more
- Text Diff Checker - Compare two texts side by side and see what changed
- Remove Duplicate Lines - Remove duplicate lines from lists and text instantly
- Sort Lines - Sort lines alphabetically, numerically, by length, or reversed
- Find & Replace - Search and replace text with regex and case options
- Reverse Text - Reverse entire text, individual words, or characters
- Slug Generator - Convert any text to clean, SEO-friendly URL slugs
- Emoji Picker - Search and copy emojis to clipboard with one click
- Markdown to HTML - Convert Markdown to HTML with live side-by-side preview
- Words to Minutes Converter - Estimate reading or speaking time from your word count
- Whitespace Trimmer - Remove extra spaces, blank lines, and clean up messy text
- Text Formatter - 34 text transforms: delimiter swaps, line sorting, whitespace cleanup, HTML stripping, email/URL extraction, and more
- Instagram/TikTok Line Breaker - Fix Instagram and TikTok caption formatting with clean breaks
- Leetspeak Converter - Convert text to 1337 leetspeak and back with intensity levels
- List Comparer - Compare two lists to find unique, common, and missing items
- Bibliography / Citation Helper - Generate MLA, APA, and Chicago style citations and bibliographies
- Morse Code Translator - Translate text to Morse code and hear it played as audio
- Palindrome Checker - Check if text reads the same forwards and backwards
- Reading Time Estimator - Estimate how long it takes to read any text based on words per minute
- AI Hidden Characters Detector - Detect and reveal invisible Unicode characters hidden in AI-generated text
- Alt Code / Special Character Builder - Browse, search, and build strings from special characters with text transforms
Developer
- JSON Formatter - Format, validate, and minify JSON with syntax highlighting
- JSON / CSV Converter - Convert JSON to CSV and CSV to JSON in either direction
- Base64 Encode/Decode - Encode text to Base64 or decode Base64 strings instantly
- URL Encode/Decode - Encode and decode URLs, query parameters, and special characters
- JWT Decoder - Decode and inspect JWT token headers, payloads, and claims
- UUID Generator - Generate random UUIDs/GUIDs with one-click copy
- Regex Tester - Test regex patterns with real-time match highlighting
- Color Picker / Converter - Pick colors visually and convert between HEX, RGB, and HSL
- QR Code Generator - Generate single or bulk QR codes from text, URLs, or CSV. Download as PNG or ZIP.
- Barcode Generator - Generate single or bulk barcodes (EAN-13, UPC-A, Code 128, Code 39). Download as PNG or ZIP.
- Cron Expression Builder - Build cron expressions visually with plain-English explanations
- Markdown Table Generator - Build tables visually and export as Markdown format
- HTML Entity Encoder/Decoder - Encode special characters to HTML entities and decode them back
- Color Contrast Checker - Check WCAG accessibility compliance for text and background colors
- JSON to Table Viewer - View JSON data as a readable, sortable HTML table
- Column Extractor - Extract specific columns from CSV, TSV, or tabular data
- LaTeX to Image - Render LaTeX math expressions as downloadable images
- SVG Path Optimizer - Optimize and compress SVG code
- Mermaid Diagram - Create flowcharts, sequence diagrams, and more from text
- Chart Studio - Create beautiful bar, line, pie, and scatter charts from your data
- CSS Gradient Generator - Build linear, radial, and conic CSS gradients with a visual editor
- Mock Data Generator - Generate realistic fake data for testing, prototyping, and demos
- Placeholder File Generator - Generate placeholder files of any type -- text, JSON, CSV, images, audio, and video
- Code to Image Converter - Create beautiful code screenshots with themes, window chrome, and PNG export
- HTML to PDF - Convert HTML code or files to downloadable PDF documents
- File Anatomy Viewer - Upload any file to explore its binary structure with annotated hex dumps and format-specific explanations
- Unicode Inspector - Paste text to see every character\
Image Tools
- Image Resizer - Resize images by pixels or percentage and download the result
- Image to Base64 - Convert any image file to a Base64 data URI for embedding in CSS or HTML
- Image Cropper - Crop, resize, and add background canvas to photos with real-time preview
- Mac Icon Generator - Generate all macOS app icon sizes from a single image upload
- Favicon Generator - Create ICO and PNG favicons for your website from any image
- Color Palette Extractor - Extract dominant colors from any image as HEX, RGB, and HSL values
- Slideshow Viewer - View images as a full-screen slideshow with autoplay and transitions
- Social Media Safe Zones - Preview Instagram, TikTok, and Reels safe zones overlaid on your images
- EXIF Data Remover - Remove EXIF metadata, GPS location, and camera info from photos
- EXIF Data Reader - Extract and view EXIF metadata from photos in a human-readable categorized format
- Video to GIF Converter - Convert MP4 video clips to animated GIFs entirely in the browser
- Video Compressor - Compress MP4 and WebM videos in the browser using FFmpeg. Adjust quality, resolution, and format.
- Image Converter - Convert images between JPG, PNG, WebP, BMP, and GIF formats instantly in your browser
- Image Compressor - Reduce image file size while maintaining visual quality
- Photo Censor - Blur or pixelate regions of an image to hide faces, text, and sensitive content
- SVG to PNG Converter - Convert SVG vector graphics to PNG raster images at any size
- Image to ASCII Art - Convert images into ASCII art with adjustable width and character sets
- Video to ASCII Art - Play videos rendered as real-time ASCII art in your browser
- OCR: Extract Text from Images - Extract text from images using client-side optical character recognition with 16+ language support
Utilities
- Quick Notes - Instant scratchpad that auto-saves your notes in the browser
- Whiteboard - Freehand drawing canvas with pen, colors, and eraser
- BMI Calculator - Calculate your Body Mass Index and see your weight category
- Sleep Cycle Calculator - Find optimal bedtimes and wake times based on 90-minute sleep cycles
- Reaction Time Test - Test your reaction speed by clicking when the screen turns green
- Hydration Tracker - Track daily water intake with customizable goals and reminders
- Breath Pacer - Guided breathing exercises including box breathing and 4-7-8 technique
- Typing Speed Test - Measure your typing speed in WPM and accuracy with real-time feedback
- Keyboard & Mouse Tester - Test all keyboard keys and mouse buttons with visual feedback that lights up as you click and type
- Checklist - Create to-do checklists with progress tracking and auto-save
- Virtual Tally Counter - Simple tap-to-count tool for tracking inventory, reps, or anything
- Dead Pixel Tester - Test your monitor for dead or stuck pixels with full-screen solid colors
- FPS Monitor - Check your browser frame rate and monitor refresh rate in real time
- Microphone / Camera Test - Test your webcam and microphone before Zoom, Teams, or Google Meet
- Screen Share Privacy Backdrop - Hide your desktop with a full-screen backdrop before screen sharing
- Screen Color Filter - Fill your screen with any color for display testing, light tracing, or calibration
- YouTube Thumbnail Grabber - Download high-resolution YouTube video thumbnails in all available sizes
- Privacy Policy Generator - Generate a GDPR and CCPA compliant privacy policy for your website or app
- Colorblindness Test - Screen for color vision deficiency with Ishihara-style dot plate tests
- Flash Cards - Create, study, and manage flash card decks with spaced repetition
- Shoe Size Converter - Convert shoe sizes between US, UK, EU, and CM sizing systems
- Clothing Size Converter - Convert clothing sizes between US, UK, EU, and international standards
- Temperature Feel Calculator - Calculate wind chill and heat index to find the real feel temperature
- Screen Resolution Tester - Display your screen resolution, pixel ratio, and test responsive breakpoints
- Browser Info - Detect and display your browser, OS, screen, and device capabilities
- Email Validator - Check if an email address has valid formatting with detailed feedback
- IBAN Validator - Validate International Bank Account Numbers with country and checksum verification
- Phone Number Formatter - Format phone numbers by country code with automatic detection
- Common Index - Browse everyday facts about speed, weights, measurements, health, money, and more
- Alcohol Sale Age Checker - Display the cutoff birth date for legal alcohol purchase by country or region
- File Converter - Convert files between formats in your browser -- images, audio, video, and data files
Audio Tools
- Metronome - Adjustable BPM metronome with accent beats and time signature support
- White Noise Generator - Play white, pink, or brown noise for focus, sleep, or relaxation
- BPM Tapper - Tap along to any song to find its tempo in beats per minute
- Sine Wave Generator / Hearing Test - Generate pure sine wave tones at any frequency and test your hearing range
- Synthesizer - Play a virtual synthesizer with multiple waveforms, filters, and effects
- Noise Meter - Measure ambient noise level in decibels using your microphone
- Instrument Tuner - Generate reference tones with rich harmonics and cent-precise tuning
- Polyrhythm Metronome - Visualize and play 2–3 simultaneous rhythms as a polyrhythm
- Text to Speech - Convert text to spoken audio with voice, rate, and pitch controls using your browser
- Microphone Monitor - Test your microphone with real-time playback, level meter, and waveform visualization
- Voice Memo - Record, save, and play back voice memos entirely in your browser
- Soundboard - Upload or record audio clips and trigger them instantly from a customizable button grid
- Beat Maker - Create beats and hear what genres sound like with 20 presets, 15 instruments, and WAV/MIDI export
- BPM Detector - Detect the tempo of any song by listening through your microphone with multi-band onset detection and IOI analysis
- Interval Ear Training - Train your ear to identify musical intervals by listening to two notes played sequentially
- BPM to Milliseconds - Convert BPM to delay and reverb timing in milliseconds for every note value
- Kick Sample Creator - Synthesize custom kick drum sounds with layered oscillators, pitch envelopes, effects, and WAV export
Games
- Pong - Play classic Pong against AI or a friend with adjustable difficulty
- Block Drop - Stack falling tetrominoes to clear rows with keyboard controls and high scores
- Asteroids - Play the classic Asteroids space shooter with retro vector graphics
- Pipe Flyer - Tap or click to fly through the pipes in this side-scrolling arcade game
- Mine Sweep - Clear the minefield online with beginner, intermediate, and expert grids
- Four in a Row - Drop discs to connect four in a row against AI or a second player
- Chess - Play chess against an AI opponent with multiple difficulty levels
- Go - Play Go (Weiqi/Baduk) online with territory scoring and capture rules
- Blackjack - Play Blackjack (21) against the dealer with chips and double down
- Word Guess - Guess the five-letter word in six tries with color-coded hints
- Code Breaker - Crack the hidden color code in limited guesses with logical deduction
- Maze - Navigate procedurally generated mazes with increasing difficulty
- Snake - Classic snake game with increasing speed, swipe controls, and high score tracking
- Yatzy - Roll five dice to fill 13 scoring categories in this classic dice game
- Farkle - Push your luck in this classic dice game -- roll, score, and bank before you farkle
Labs
- Spreadsheet Lab - Full-featured spreadsheet with 37 formulas, visual formula builder, multi-sheet tabs, and XLSX import/export
- Process Lab - Build processing pipelines for files and text — run conversions, transforms, and encoding in bulk
- Audio Lab - Convert, trim, slice, and transform audio files with a visual waveform editor
- Image Lab - Non-destructive image editor with crop, resize, adjustments, effects, and export