utility ⚡ Interactive

JSON Formatter & Validator

Format, validate, and beautify JSON with syntax highlighting

• Updated: February 12, 2026

A simple and fast JSON formatter and validator that runs entirely in your browser. No data is sent to any server.

Features

  • Format JSON: Pretty-print JSON with proper indentation
  • Minify JSON: Remove all whitespace for compact output
  • Validate JSON: Instant error messages for invalid JSON
  • Copy to Clipboard: One-click copying of formatted output
  • Privacy-First: All processing happens locally in your browser

How to Use

  1. Paste or type your JSON in the input field
  2. Click “Format” to pretty-print with indentation
  3. Click “Minify” to remove all whitespace
  4. Click “Copy” to copy the formatted output to your clipboard

Perfect for debugging API responses, cleaning up JSON data, or validating JSON syntax.

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