🎉 Now Available for Chrome!

Transform Raw Code Into
a Readable Workspace

CodePrettify automatically formats, validates, and highlights raw JavaScript, JSON, CSS, and RSS/Atom files the moment you open them. Get an IDE-like experience directly in your browser.

Install for Chrome
Coming Soon

CodePrettify will also be available soon on:

Edge
Firefox

📄 Supported Code Formats

JavaScript .js JSON .json CSS .css RSS/Atom .rss .atom

🌐 14 Interface Languages

English Norwegian Swedish Danish German French Spanish Italian Portuguese Russian Chinese Japanese Korean Vietnamese

📺 See It In Action

CodePrettify Extension Preview
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Features

Everything You Need

From smart automation to powerful debugging tools—CodePrettify has you covered.

🚀

Smart Automation

No clicking required. CodePrettify works automatically the moment you open a file.

  • Supports JS, JSON, CSS, and RSS/Atom files
  • Intelligent minification detection—analyzes code density before formatting
  • Works on web URLs and local files (file://)
  • Zero-flash loading prevents raw text from appearing
🛡️

Syntax Validation

Don't just read code—debug it. Instant feedback with error details.

  • JSON: Detects syntax errors with exact line numbers
  • JavaScript: Identifies mismatched braces and typos
  • CSS: Validates structural integrity
  • Non-intrusive toast notifications for errors
📂

Interactive JSON Viewer

Navigate massive datasets with ease using our advanced JSON tools.

  • Collapsible arrays and objects for easy navigation
  • Smart previews: Array(5) or {3 keys}
  • URLs automatically become clickable links
  • Expand/Collapse All buttons for massive files
🛠️

Powerful Toolkit

Professional tools for working with code files efficiently.

  • Advanced search with result counting and navigation
  • Go to Line—jump to specific lines instantly
  • Export as Original, Formatted, or Minified
  • Works on huge files where browser search fails
⚙️

Fully Customizable

Tailor your experience to match your preferences.

  • Themes: Light, Dark, or Auto (syncs with system)
  • Adjustable font size (10-24px)
  • Indentation options (2 or 4 spaces)
  • Toggle line numbers on/off
🔒

100% Privacy First

Your code stays on your machine. Always.

  • Everything runs client-side in your browser
  • No servers, no tracking, no API calls
  • No data collection whatsoever
  • Open source and transparent
Efficiency

⌨️ Keyboard Shortcuts

Master CodePrettify with these quick commands

Ctrl + B Toggle Raw/Pretty
Ctrl + Alt + C Copy to Clipboard
Ctrl + F Open Search
Ctrl + G Go to Line
Ctrl + Alt + T Toggle Toolbar
📝

Note for Local Files

To use CodePrettify with local files (e.g., file:///C:/code/data.json), you must enable "Allow access to file URLs" in Chrome's extension management page (chrome://extensions).