JSON formatter.
Paste JSON and it comes back readable: indented, keys sorted if you like, or minified. If it isn’t valid, you see the line and column where it breaks.
Free tool, no warranty, no liability. The result is produced automatically by a free tool from transjt.ai, nothing more. It can be incomplete or wrong. transjt.ai gives no warranty and accepts no liability for decisions or changes based on it; check every result before you use it.
JSON formatter in three steps.
- 01
Paste your JSON
From an API, a config file or a theme’s fields.json.
- 02
Pick the format
2 or 4 spaces, tabs or minified; sort the keys if you like.
- 03
Copy or download
The formatted JSON, ready to paste back.
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It adds line breaks and indentation so JSON is easy to read, and checks that it is valid on the way. Minifying does the opposite: it removes every space a machine doesn’t need.
The usual causes: a comma after the last item, single quotes instead of double quotes, keys without quotes, or comments, which JSON doesn’t allow. The error shows the line and column where the parser stopped.
It orders the keys of every object alphabetically, at every level, which makes two JSON files easy to compare. Arrays keep their order.
No. It is formatted in your browser and never leaves your device.
Yes, with no sign-up and no limits.
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