Paste & share
Word & character counter
Case converter
Text diff / compare
Lorem ipsum generator
Find & replace
Text to slug / URL encode
Remove duplicate lines

JSON formatter / validator
JSON to CSV / XML / YAML
HTML beautifier / minifier
CSS beautifier / minifier
JavaScript beautifier / minifier
SQL formatter
Regex tester
Cron expression builder
Markdown editor
Code screenshot

Base64 encode / decode
URL encode / decode
HTML entity encode / decode
JWT decode / inspect
Hash generator
UUID / ULID generator
Unix timestamp converter
Number base converter

Image compressor
Image format converter
Image resizer & cropper
SVG optimiser
Favicon generator
Base64 ↔ image

Colour picker
Palette generator
Contrast checker (WCAG)
CSS gradient generator

PDF merge
PDF split
PDF compress
HTML / Markdown to PDF

QR code generator & reader
Password generator
URL shortener
IP / network lookup
Speed test
Emoji picker
OG meta tag previewer

AI code explainer
AI regex builder
AI SQL writer
AI JSON schema generator
AI colour palette

Changelog

2026-03-25
Initial ZeroKit release — 52 tools, AI routes, auth, Stripe hooks.

52 free online tools for developers, designers, and everyone. Client-side by default — your data never leaves your browser.

Processed locally

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