JsonFixer
p/jsonfixer
Fix malformed JSON from LLMs, APIs, and config files.
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We built the JSON repair tool we couldn't find on Reddit

Hey Product Hunt!

I built JsonFixer.ai because I got tired of my LLM agents breaking my production runs at 2 AM. I spent way too much time on Reddit and Google looking for a tool that didn't just point out errors, but actually fixed the "slop" ChatGPT and Claude tend to spit out.

Since I couldn't find it, I decided to build exactly what I needed.

JsonFixer - Fix malformed JSON from LLMs, APIs, and config files.

JsonFixer is a free AI-powered JSON repair workspace. Paste broken JSON — from LLM outputs, API responses, or config files — and a four-stage self-healing engine (WASM → jsonrepair → AI) fixes it in under 200 ms. REST API available.