JSON Formatter & Validator
Validates JSON and reformats it with the indentation you choose, or minifies it to a single line. Errors are reported with the exact position so you can fix them fast.
JSON
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Result
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Options
How to use
Validates JSON and reformats it with the indentation you choose, or minifies it to a single line. Errors are reported with the exact position so you can fix them fast.
Tip: press “Load sample” to fill the box with realistic example data.
Everything runs locally in your browser — no upload, no account, no API key.