About DevTools

DevTools is a small set of free developer utilities that run entirely in your browser. Base64, JSON viewer, JSON to Excel, QR reader and generator, AES encrypt/decrypt, JWT decoder — all without uploading anything.

Everything is client-side. Your input never leaves the page, so you can paste tokens, JSON payloads or images without worrying about leaks or third-party trackers.

About the author

Built and maintained by Ismael Hurtado Vargas, a Full-Stack developer based in Lima, Peru. Focused on web, mobile and AI automation since 2014.

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Made by Ismael Hurtado Vargas.