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JSON Validator

Paste JSON to validate syntax, format readable output, or minify it for compact storage.

JSON input

Ready.

How to use

Paste your JSON into the input box.
Click Validate to check syntax.
Use Format for readable indentation or Minify for compact JSON.

FAQ

Does this send my JSON to a server?

No. The MVP validator runs in your browser with JavaScript.

Can it fix invalid JSON automatically?

It reports syntax errors. You can edit the JSON and validate again.

What is JSON minify?

Minify removes extra whitespace while keeping the same data structure.

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