About DevToolKit

DevToolKit is a collection of free, browser-based developer utilities built by developers, for developers.

Our Mission

We believe developer tools should be free, fast, and private. Every tool on DevToolKit runs entirely in your browser — your data never touches our servers. No sign-up, no tracking, no data collection.

What We Offer

A growing collection of essential developer utilities including JSON formatting, Base64 encoding, JWT decoding, UUID generation, regex testing, timestamp conversion, hash generation, color conversion, text diffing, and more. New tools are added regularly.

Technology

Built with Next.js, React, and Tailwind CSS. Static site generation ensures maximum performance and zero server costs. All processing happens client-side using modern browser APIs like Web Crypto for hash generation and crypto.randomUUID for UUID generation.

Open Source

DevToolKit is open source. You can view the code, suggest improvements, or contribute new tools on our GitHub repository.

Support

If you find DevToolKit useful, you can support us by sharing it with fellow developers, contributing to the codebase, or disabling your ad blocker on our site.