JSON Formatter

Online JSON Formatter, Validator & Beautifier

JavaScript Object Notation (JSON) is the universal standard for REST APIs, web services, and configuration files. Our JSON Formatter validates raw JSON, highlights syntax errors, and applies clean 2-space indentation.

How to Format & Validate JSON

  1. Paste your raw, minified, or unformatted JSON payload into the workspace.
  2. Click Format (2 Spaces).
  3. If the JSON is valid, a clean, readable data tree is generated. If a syntax error is present, a descriptive error message indicates where to fix your code.
  4. Click Copy JSON to export your formatted payload.

Frequently Asked Questions (FAQ)

Why did my JSON fail validation?

Common JSON syntax mistakes include using single quotes (') instead of double quotes ("), leaving a trailing comma after the final array/object item, or omitting quotation marks around object keys.

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