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Clawculator is a minimalist toolkit for human builders and agentic systems. Zero tracking. Zero databases. No accounts, no data harvesting. Pure utility built on first principles.
Everything runs in your browser. No data leaves your machine. Just tools that do exactly what they say.
High-Frequency Modules
Social Media
Colour
Colour Converter
Convert between colour formats
Tailwind Shade Generator
Generate Tailwind colour scales
Harmony Generator
Generate colour harmonies
Palette Generator
Generate beautiful colour palettes
Palette Collection
Browse curated colour palettes
Contrast Checker
Check WCAG colour contrast compliance
Colour Blindness Simulator
Simulate how colours appear to colour blind users
Gradient GeneratorNew
Create linear, corner, and mesh gradients
Images & Assets
Favicon Generator
Generate favicons from any image
SVG Optimiser
Optimise and minify SVG files
Placeholder Generator
Generate placeholder images
Image Splitter
Split images into tiles
Image Converter
Convert between PNG, JPEG, WebP, AVIF, GIF, BMP, TIFF, ICO, ICNS with resize and format options
Artwork Enhancer
Add colour noise overlay to artwork
Background RemoverBeta
Remove backgrounds from images automatically
Image TracerNew
Trace raster images to SVG vectors
Typography & Text
PX to REM
Convert pixels to rem units
Line Height Calculator
Calculate optimal line heights
Typography Calculator
Convert between typographic units
Paper Sizes
Reference for paper dimensions
Word Counter
Count words, characters and more
Glyph Browser
Browse unicode glyphs
Font File Explorer
Explore font file contents
Print & Production
Other Tools
Text Scratchpad
Text editor with manipulation tools
Tailwind Cheat Sheet
Quick reference for Tailwind classes
QR Generator
Generate styled QR codes with custom colors, shapes, and logos
Barcode Generator
Generate Data Matrix, Aztec, PDF417, Code 128, EAN-13, and more
Meta Tag Generator
Generate HTML meta tags
Regex Tester
Test regular expressions
Calculators
Scientific Calculator
Full-featured scientific calculator with history
Graph Calculator
Plot and visualise mathematical functions
Algebra Calculator
Symbolic algebra: simplify, factor, solve, derivatives
Base Converter
Convert between decimal, hex, binary, and octal
Time Calculator
Unix timestamps, date arithmetic, timezone conversion
Unit Converter
Convert between units of length, weight, data, and more
Encoding Tools
Base64, URL encoding, and hash generation