✓ Runs locally in your browser

JSON Formatter

Format and validate JSON instantly in your browser.

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About this tool

What is JSON Formatter?

JSON Formatter makes compact or difficult JSON easier to read and confirms whether its syntax can be parsed.

Three simple steps

How to use JSON Formatter

  1. 01

    Paste or type the JSON you want to inspect.

  2. 02

    Choose Format for indentation or Minify for a compact result.

  3. 03

    Review the parsed output, then copy it when the structure is correct.

Common questions

JSON Formatter FAQ

Can this tool repair invalid JSON automatically?

No. It reports the parsing error so you can correct the source without the tool guessing what the data should mean.

Is JSON Formatter private to use?

Yes. The data is processed by code running in your browser and is not uploaded to Toolnera.