Free tools for everyday work.
ToolKnit is a free browser-based toolbox for PDF, image, video, audio, text, and everyday tasks.
Tool catalog
PDF to Image
Select pages and export PNG, JPG or WebP
Merge PDF
Combine multiple PDFs into one
Compress PDF
Compress to a verified target size
PDF to Word
Convert to editable .docx
Word to PDF
Convert .docx preserving styles
AI Image Metadata Viewer
Read saved prompts, workflows & image credentials
Image to PDF
Images into a single PDF
Image Stitcher
Combine images into one long image
Compress Image
Compress to a target size
JPG to PNG
Lossless format conversion
PNG to JPG
Compact format conversion
JPG to WebP
Modern format, 30% smaller
PNG to WebP
WebP with transparency
WebP to JPG
Universal compatibility
WebP to PNG
Lossless format conversion
Image Grid Split
Split into 3×3 grid pieces
Crop Image
Free crop or locked ratios
Image Resizer
Resize with social presets
Background Remover
AI-powered background removal
HEIC to JPG
Convert iPhone photos to JPG
Flip & Rotate Image
Mirror & rotate by 90/180/270°
AI to PNG
Convert Illustrator files to PNG
Circle Crop
Crop into a circle PNG
Subtitle Repair & Sync
Check SRT/VTT and adjust subtitle timing locally
Compress Video
Reduce size, maintain quality
Video to GIF
Clips to animated GIFs
Video Screenshot
Capture HD frames as PNG
Video to Audio
Extract audio as WAV
MP3 to WAV
Lossless PCM output
WAV to MP3
Selectable bitrate 128–320kbps
Metronome
30–300 BPM with tap tempo
BPM Detector
Find any song’s tempo
Noise Generator
White, brown & pink noise mixer
Lyric Visualizer
Audio waveform + synced lyrics player
Character Counter
Words, sentences & paragraphs
Extract Text
From PDF, Word, Excel & 12+ formats
Lorem Ipsum Generator
Placeholder text for designs
Fancy Text Generator
20+ cool fonts, copy & paste
Morse Code Translator
Text to Morse & back, with audio
JSON Formatter
Beautify, validate & minify
Invoice Generator
Create & download PDF invoices
Markdown Editor
Live preview & export
Text Diff
Compare texts & find differences
Hash Generator
MD5, SHA-1, SHA-256, SHA-512 & file hash
Text to Speech
69 AI neural voices, 19 languages
Text Animation Maker
6 effects, export MP4
Age Calculator
Exact age, zodiac & birthday countdown
Unit Converter
Length, weight, temp & more
Percentage Calculator
Percent of, change & ratio
BMI Calculator
Body Mass Index with visual bar
Tip Calculator
Calculate tip, total & split bill
Mortgage Calculator
Monthly payment & amortization
Meeting Cost Calculator
Real-time meeting burn rate
Typing Speed Test
WPM, accuracy & keystroke tracking
Stopwatch
Millisecond precision + laps
Countdown Timer
Audio alert when done
World Clock
80+ cities, live time
Pomodoro Timer
Focus & break intervals
Timestamp Converter
Unix epoch to date & back
Emoji Finder
Search & copy 560+ emojis
Whiteboard
Draw, sketch, annotate
What to Eat?
Random meal suggestion
Ask Fate
Let the universe decide
Keyboard Tester
Find broken or stuck keys
Random Spinner
Custom wheel, up to 15 options
Reaction Time Test
4 modes, ms precision
CPS Test
Clicks per second benchmark
Aim Trainer
Mouse accuracy & speed
Mic & Camera Test
Test your mic & webcam live
QR Code Generator
URLs, text, Wi-Fi & email
Pixel Art Converter
Retro presets & palettes
Coin Flip
3D animation + statistics
Dice Roller
1— dice with history
Password Generator
Crypto-secure, strength meter
Color Picker
HEX/RGB/HSL + palettes
Gradient Generator
CSS linear & radial gradients
Daily Planner
Schedule image & PDF export
Signature Maker
Draw or type, transparent PNG
Flashcard Maker
Create, flip & quiz study cards
CSV Chart Maker
Paste data, export PNG & HTML
World Holidays
3,469 holidays across 129 countries & regions
Item Locator
Record where you put things
ASCII Art
Image to ASCII text
ASCII Banner
Text to big ASCII banner
MIDI Keyboard
Play, record & export .mid
Silk Screen
Tri-color halftone filter
Spin the Dare
Drinking game roulette, 300 dares
Breathing Relaxation
6 guided breathing techniques
AI Trajectory
Multi-round life path inference
AI Tarot
Draw cards, AI interprets
AI Ex-Partner Chat
Distill memories into an AI persona
AI Text Adventure
Interactive story, you choose the path
Emotional Neglect Test
40-question psychological assessment
Quit Smoking Tracker
Track progress, savings & health
Local Where Possible.
Supported tools use JavaScript and WebAssembly to process files locally. Optional AI and online services send the input needed to the selected provider; their requirements are explained in each tool.
Local tasks avoid file uploads. Speed depends on your device and any libraries that need downloading.
Local processing keeps file contents on your device. AI and online services have separate processing and privacy requirements.
Previously visited local tools may work offline once their dependencies are cached. AI and online services still require a connection.
It's free.
No ToolKnit signup required. Pick a tool and check its local or online processing details.
Learn more about ToolKnit —