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JS Minifier

Compress JavaScript code by removing whitespace, newlines, and comments. Use this free and completely local tool securely in your browser to get the best dev...

Compress your JavaScript code to drastically reduce its file size. Smaller JS files download faster, execute faster, and save on bandwidth.

Note

This tool provides basic minification (removing whitespaces and comments). For production builds, a tool like Terser or Webpack is recommended for advanced dead-code elimination and variable mangling.

What is the JS Minifier?

The JS Minifier is a free, privacy-first tool that runs entirely in your browser. It is designed for developers, analysts, and anyone who needs to quickly and securely process data without uploading it to an untrusted third-party server.

Features

  • Privacy First: Your data never leaves your device.
  • Lightning Fast: Everything is processed instantly using client-side JavaScript.
  • Easy to Use: A clean, distraction-free interface built for professionals.

How to use this tool

  1. Paste or enter your data into the input field.
  2. The tool will automatically process your input.
  3. Review the results on the screen.
  4. Copy or download the output as needed.