JSON Formatter & Validator

Paste your JSON below to format, validate, or minify it instantly.

What is JSON?

JSON (JavaScript Object Notation) is a lightweight data-interchange format that is easy for humans to read and write, and easy for machines to parse and generate. It is widely used in web APIs, configuration files, and data storage.

How to Use This Tool

  • Paste your raw JSON into the input field.
  • Click Format to pretty-print with indentation.
  • Click Minify to compress into a single line.
  • If the JSON is invalid, an error message will show what went wrong.
  • Click Copy to copy the result to your clipboard.

Features

  • Pretty-print JSON with 2-space indentation
  • Minify JSON to reduce size
  • Validate JSON and display syntax errors
  • Copy formatted output to clipboard
  • Works entirely in your browser — no data is sent to any server

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