You know that moment when you're debugging at 2am and the API returns malformed JSON? Or when someone sends you a config file with trailing commas and Python's True instead of true?
I kept running into this, so I built something for it.
What it does
webtoolz.dev is a JSON studio that runs entirely in your browser. The usual stuff is there—formatter, validator, minifier, tree view. But the thing I actually use most is the AI fix.
Paste broken JSON, click fix, get valid JSON. It handles:
- Missing quotes around keys
- Trailing commas
-
True/False→true/false - Missing commas between properties
Why browser-only matters
Nothing leaves your machine. I work with config files that have API keys and credentials—not comfortable pasting those into random online tools that "process on the server."
This runs 100% client-side. Check the network tab if you don't believe me.
No signup, no tracking
Just use it. That's it.
Would love feedback if you try it.
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