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JSON Formatter, Validator & Viewer

Paste JSON to pretty-print it, minify it, or read it as a tree. If it will not parse, you get the line and column of the problem rather than just "unexpected token".

JSON input

Output

Paste JSON above to format it.

What this does

  • Pretty-print with your choice of indent
  • Validation with the exact line and column
  • Collapsible tree view for large responses
  • Nothing is uploaded — the parsing happens on this page

Looking for an API to try it against? Browse APIs that need no key — you can call those straight from this page.

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