Developer Tools

JSON Formatter – Free Online Tool

Beautify, indent, format, and minify messy JSON strings with syntax error detection.

What is JSON Formatting and Validation?

JavaScript Object Notation (JSON) is the universal format for API communications. A JSON formatter parses raw strings, detects syntax errors (like missing commas or unescaped quotes), and formats objects with clean 2-space indentation.

How to Use JSON Formatter

  1. Paste your raw, minified, or unformatted JSON text into the editor.
  2. Choose indentation: 2 Spaces, 4 Spaces, or Minify.
  3. Click "Format JSON".
  4. Copy clean JSON or download as a .json file.

Key Highlights & Features

  • ✓ 2 & 4 space indentation
  • ✓ One-click minify
  • ✓ Syntax tree analysis
  • ✓ Download as .json

Frequently Asked Questions

Does this formatter validate JSON schema?

Yes, any syntax errors are immediately highlighted with precise line and character error positions.

Can I minify JSON for production API payloads?

Yes, you can toggle between 2-space formatted view and 1-line minified output with one click.

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