JS Minifier

Minify JavaScript code free and instantly. Remove whitespace and comments to reduce file size — 100% private, runs instantly.

Instant & Fast: High-performance utility tools ready for immediate use.

Free Forever • No Watermarks • No Sign-up

How to use JS Minifier

Open JS Minifier — no account or login needed.

Select your file or input your data into the tool panel above.

Adjust the settings, dimensions, or parameters to your preference.

Click process and save your result directly to your device.

Does minification rename variables?

This tool removes whitespace and comments. For full obfuscation/mangling, use a dedicated build tool like Terser.

Will this break my JavaScript?

Is my code private?

Beautify and auto-indent JavaScript code for better readability.

Remove whitespace, comments, and redundant code from HTML.

Compress CSS by removing whitespace, comments, and redundant code.

Remove all whitespace and formatting to produce compact JSON.