Developer toolLiveRuns on your device
JSON Formatter
Pretty-print, validate and minify JSON in your browser. Errors are reported with the exact line and column, so you can fix them fast.
How to use
JSON Formatter in three steps
- 01
Paste your JSON.
- 02
Choose format or minify, and the indentation you like.
- 03
Copy or download the result.
FAQ
Good to know
No — the validator follows the strict JSON standard, which allows neither. It will point to the exact spot.
Yes. Turn on “Sort keys” to order object keys alphabetically at every level.
No. The tool runs inside this browser tab. Your input is processed in memory on your device and is gone when you close the tab.
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