Free Tool

Free JavaScript Minifier

Shrink JavaScript with Terser — the same minifier bundlers use.
Free, private, no upload to a server. Everything happens in your browser.

All processing happens 100% in your browser — nothing is uploaded anywhere.

JavaScript
Minified JavaScript
Everything You Need to Minify JavaScript
100% Private
Your code is never sent anywhere — Terser runs locally in your browser.
Completely Free
No sign-up, no limits. Free forever.
Production-Grade
Uses Terser, the same minifier trusted by major JS bundlers.
Size Comparison
See exactly how many bytes you saved.
Copy-Ready Output
One click copies the minified code.
Works Everywhere
Desktop, tablet, or phone — no app required.
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Built by Perry — tools I needed, free for anyone who wants them.