JavaScript Minifier
Minify JavaScript code with variable mangling and dead code removal. Free, no account needed.
Paste JavaScript above and click Minify to compress it.
Ctrl+Enter to runCtrl+Shift+C to copy
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JavaScript Minifier Guide: Optimize JS Files for Production
Learn how JavaScript minification works, why it matters for performance, and how to shrink your scripts effectively.
What Is JavaScript Minification?
JavaScript minification reduces the size of JS files by removing whitespace, comments, and shortening variable names where safe. The minified code executes identically but downloads faster and parses quicker in the browser.
5 min readRead full guide