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DataPrivacy-firstNo trackingRuns locally

JSON Formatter & Validator

Validate JSON, pretty print it, or minify it for compact storage.

Quick tips

  • *Paste JSON into the editor.
  • *Choose pretty print or minify.
  • *Errors are shown with clear messages so you can fix invalid JSON.
Everything runs locally in your browser. No uploads or tracking.

How it works

  1. Step 1

    Paste JSON into the editor.

  2. Step 2

    Choose pretty print or minify.

  3. Step 3

    Errors are shown with clear messages so you can fix invalid JSON.

FAQ

Does it support large JSON?+

It runs locally in your browser and handles most typical payloads quickly.

Will it change my data?+

Formatting does not alter values, only whitespace and ordering as preserved by JSON.