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JSON Formatter & Validator

Format, validate and minify JSON with clear error messages.

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How to use the JSON Formatter & Validator

  1. 1

    Paste your JSON.

  2. 2

    Click Format or Minify.

  3. 3

    Fix any error using the line and column shown, then copy the result.

Frequently asked questions

Is my JSON sent to a server?

No. Parsing and formatting happen in your browser.