Code Formatter & Syntax Highlighter

Format and highlight code in multiple languages. Auto-detect language or select manually. Pure JavaScript, no external libraries.

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What is JSON Formatting?

JSON Formatter validates, formats, and beautifies JSON data with proper indentation and syntax highlighting. Validate JSON syntax, format messy JSON, minify for production, and fix common errors. All processing happens in your browser for privacy and speed.

Key Features

  • Format & Beautify: Format JSON with proper indentation and line breaks
  • Validate: Check JSON syntax and highlight errors
  • Minify: Compress JSON for production use
  • Syntax Highlighting: Color-coded JSON for better readability
  • Privacy First: All processing happens in your browser—data never leaves your device

Use Cases

  • Developers: Format and validate JSON from APIs and config files
  • Debugging: Validate JSON responses and identify syntax errors
  • Documentation: Format JSON examples for documentation
  • Data Processing: Clean and format JSON data before processing
  • API Development: Test and format JSON payloads