Back to Tools

JavaScript Minifier & Unminifier

Minify JavaScript for production or beautify minified JS for readability

What is JavaScript Minification?

JavaScript minification is the process of removing unnecessary characters from JavaScript code to reduce file size. This includes removing whitespace, comments, and sometimes shortening variable names, all while maintaining the code's functionality.

Our free JavaScript minifier tool allows you to compress JS files for production deployment or beautify minified JavaScript for easier debugging and editing. All processing happens in your browser, ensuring complete privacy.

Why Minify JavaScript?

  • Performance: Smaller files load faster, improving page speed
  • Bandwidth: Reduce data transfer, especially important for mobile users
  • SEO: Faster sites rank better in search engines
  • User Experience: Quicker page loads improve user satisfaction
  • Production Ready: Minified code is standard for production deployments

Key Features:

  • Minification: Compress JavaScript by removing whitespace and comments
  • Unminification: Beautify minified JS with proper formatting and indentation
  • Real-time Processing: Instant minification/unminification
  • Copy & Download: Easy export options for processed JavaScript
  • Privacy-Focused: All processing happens client-side in your browser

Input JavaScript

Output JavaScript

About JavaScript Minification

JavaScript minification reduces file size by removing unnecessary whitespace, comments, and formatting. This improves page load times and reduces bandwidth usage.

Features:

  • Minify - Compress JavaScript by removing whitespace and comments
  • Unminify - Beautify minified JS with proper formatting
  • Copy - Easy copy-paste functionality
  • Client-side - All processing happens in your browser