About DevToolKit

What is DevToolKit?

DevToolKit is a collection of 30+ free online tools built for developers. Every tool runs entirely in your browser — your data never leaves your machine.

Why DevToolKit?

• Privacy first. All processing happens client-side. We never send your data to any server.
• Fast. Static HTML + minimal JavaScript. No framework bloat, no spinners.
• Free. No registration, no paywalls, no feature gates.
• Keyboard-friendly. Ctrl+Enter to execute, Ctrl+Shift+C to copy, Ctrl+K to search.
• Works offline. Install as a PWA and use without internet.

How is this possible?

Modern browsers are incredibly powerful. The Web Crypto API handles hashing, TextEncoder handles encoding, and JavaScript can parse and format any text format. There’s simply no need for a server.

Open Source

DevToolKit is open source. Found a bug or want to add a tool? Contributions are welcome on GitHub.