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 Code Formatting?

Code Formatter & Syntax Highlighter formats and beautifies code in multiple programming languages. Auto-detect the language or select manually, then format your code with proper indentation and syntax highlighting. Perfect for cleaning up messy code or preparing code for documentation.

Key Features

  • Multiple Languages: Supports JSON, JavaScript, HTML, CSS, PHP, Python, SQL, C#, Java, and more
  • Auto-Detection: Automatically detects the programming language
  • Syntax Highlighting: Color-coded syntax for better readability
  • Line Numbers: Numbered lines for easy reference
  • Privacy First: All processing happens in your browser—code never leaves your device

Use Cases

  • Developers: Format and clean up code before committing
  • Documentation: Prepare code snippets for documentation and tutorials
  • Code Review: Format code for easier review and collaboration
  • Learning: Format code examples for educational purposes
  • Debugging: Format messy code to identify issues more easily