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JSON Validator

Check whether JSON is valid and get a readable error message when the structure is not.

Input

Fields are ready to edit and update the result automatically.

Live

Ready.

Results update as you edit.

Keep exploring

Turn compact or difficult-to-read JSON into clean, indented JSON you can inspect and copy.

Remove unnecessary JSON whitespace while keeping the data valid and ready for transport.

Encode text as Base64 in your browser for quick debugging, testing, and data exchange tasks.

From the guide archive