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Open toolJSON Formatter
Paste JSON to validate it, format it with indentation, copy the formatted result, or minify it directly in your browser.
How to use
- Paste valid JSON into the editor.
- Select Format for readable indentation.
- Select Copy formatted JSON to copy a pretty formatted version.
- Select Minify for compact one-line JSON.
JSON formatter FAQ
Will invalid JSON show an error?
Yes. The formatter displays a clear error message if the JSON cannot be parsed.
Does JSON formatting require a server?
No. This implementation runs in the browser with a small script.