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JSON Formatter and Validator

Paste an API response, config file or JSON payload to validate it, format it, minify it or sort object keys locally.

Validate first, then copy the formatted output.

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Format, minify, validate and sort JSON.

When to use this JSON formatter

Use it when an API response, config file or copied JSON payload needs to be validated, formatted or normalized before debugging, documenting or sharing.

  1. Format a compact API response before reading it.
  2. Minify a JSON payload before copying it into a request body.
  3. Sort object keys before comparing a config change.
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FAQ

Questions

Questions

Can this formatter sort JSON keys?

Yes. Use Sort object keys to normalize object key order recursively while keeping arrays in their original order.

Does invalid JSON show an error?

Yes. Invalid JSON returns a syntax error instead of uploading the payload to another service.

Can I download the formatted JSON?

Yes. The output can be copied or downloaded as a .json file from the browser.