kattoolbox

Free, fast, browser-based developer tools. No sign-up. No data collection.

Live → coming soon

Tools (30)

Formatters — JSON Formatter, Markdown Preview, SQL Formatter, XML Formatter

Encoders — Base64, URL Encoder, HTML Entities, JWT Decoder

Generators — UUID, Lorem Ipsum, Hash, QR Code, Password

Converters — Timestamp, Color, Number Base, JSON→CSV, CSV→JSON

Text Tools — Word Counter, Regex Tester, Diff Checker, Case Converter

CSS Tools — Gradient Generator, Box Shadow, Px↔Rem Converter

Web Tools — Meta Tag Generator, Slug Generator, Cron Parser, Image→Base64, Placeholder Image

Next.js · TypeScript · Tailwind CSS · Static Export

npm install
npm run dev

MIT