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DevToolBox is a collection of 50+ free browser-based developer tools. Format JSON, encode Base64, decode JWTs, generate UUIDs, test regex, convert colors, generate QR codes, and much more. Every tool runs entirely in your browser — no signup required, no data sent to any server. Built for developers who value privacy, speed, and simplicity. Zero cost to use, works offline after first load.
DevToolBox50+ free browser-based dev tools. No signup required.
Mikasa Ackermanleft a comment
Hey Product Hunt! I built DevToolBox because I was ired of bouncing between different websites for basi dev tasks like formatting JSON, encoding Base64, ordecoding JWTs. So I put 50+ tools in one place — allrunning locally in your browser. No signup, no serve calls, no tracking. Your data never leaves your macine. The whole thing costs me $10/year to run (just he domain). I'd love to hear which...
DevToolBox50+ free browser-based dev tools. No signup required.