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Tool Library

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Use the star button on any tool below to add it to this section.

Social Media

Social Media Cropper
Crop images for Instagram, Bluesky & Threads
Matte Generator
Put non-square images on a square matte
Seamless Scroll Generator
Split images for Instagram carousel scrolls
Watermarker
Add watermarks to images

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
GIF OptimiserNew
Optimise GIFs locally with gifsicle WASM
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
Image ComparerNew
Compare two images with side by side, overlay, difference, and swipe views
Artwork Enhancer
Add colour noise overlay to artwork
Background RemoverBeta
Remove backgrounds from images automatically
Image TracerNew
Trace raster images to SVG vectors

Visual Effects

DitheringNew
Apply ordered Bayer dithering with colour or monochrome output
DotsNew
Create halftone dot-screen artwork from any image
ASCIINew
Render images as browser-local ASCII art
RecolorNew
Map image luminance between two custom colours
EdgeNew
Extract outlines with a two-tone edge detector
StipplingNew
Create stippled illustrations from deterministic dot fields
ScatterNew
Disperse image cells into a fragmented print-like composition
BevelNew
Create a faux-relief bevel from image luminance and light angle
CRTNew
Apply scanlines, RGB fringing, vignette, and noise
PatternsNew
Overlay structured patterns that follow image luminance
DistortNew
Warp images with sine-wave distortion along one axis
DisplaceNew
Offset pixels using luminance-driven displacement

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
Font ConverterNew
Convert WOFF and WOFF2 webfonts back to TTF or OTF locally
Diff CheckerNew
Compare two text blocks and highlight line-level differences

Print & Production

PDF PreflightNew
Analyse PDFs for print-readiness issues
Guillotine DirectorNew
Guided workflow for guillotine cutting imposed print sheets
Zine Imposer
Create 8-page mini-zine imposition layouts

Other Tools

Markdown WriterNew
Compose Markdown with a live preview
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

Command Line Helpers

FFmpeg Command BuilderNew
Build common FFmpeg commands without memorising flags
ImageMagick Command BuilderNew
Build common ImageMagick commands without memorising flags
gifsicle Command BuilderNew
Build common gifsicle commands without memorising flags

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