JSON Formatter

Format messy JSON into readable, indented output or minify it into a compact form. Supports adjustable indentation and syntax validation.

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What is this tool?

JSON (JavaScript Object Notation) is a common data format. This free JSON formatter prettifies minified JSON with indentation and line breaks, or minifies formatted JSON—handy for debugging and config files.

How to use

Paste your JSON into the input area. Use Pretty Print to format it with indentation, or Minify to remove extra spaces. Invalid JSON will be reported so you can fix syntax errors.