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Developer Tools
Essential utilities for developers format JSON, decode JWTs, encode/decode Base64, generate UUIDs, and convert epoch timestamps. All free, fast, and private.
Available Developer Tools
Free Online Developer Utilities
Built for Developers, By Developers
UtilsBuddy's developer tools are designed for the everyday tasks programmers face. From formatting messy JSON responses to decoding JWT tokens for debugging authentication, these tools save you time and reduce context-switching.
No Downloads, No Sign-ups
Every tool runs entirely in your browser. There's nothing to install, no accounts to create, and no data ever leaves your machine. Bookmark the tools you use most and they're always a click away.
Privacy-First Approach
Your data stays on your device. Whether you're pasting API tokens, encoding credentials, or formatting sensitive configuration files, everything is processed locally with JavaScript never uploaded to any server.