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JSON Formatter

Paste JSON to make it readable, check it for errors, or minify it to one line.

How to use JSON Formatter

  1. 01Paste JSONPut your JSON in the box.
  2. 02Format or minifyChoose indentation or one line.
  3. 03CopyCopy the cleaned JSON.

Questions

Is my JSON sent anywhere?

No. This tool runs entirely inside your browser. Your files and text are never uploaded to any server, so nobody else can see them.

Why is my JSON invalid?

Common causes are trailing commas, single quotes instead of double quotes, and missing brackets.