Free online JavaScript minifier
JS Minifier
Minify JavaScript snippets with a lightweight browser-side compressor for quick sharing and tests.
Developer utility
Browser based
Runs on the current page
Copy-ready
Use the output where you work
No sign-in
Open the tool and get moving
Developer tool
Minify JavaScript
Compress JavaScript snippets with lightweight comment and whitespace removal.
Output will appear here.
Original
106 chars
Minified
0 chars
Saved
100%
Built for developers
Small utilities for fast technical checks.
Entwicklera developer tools are made for everyday formatting, encoding, decoding, generation, and inspection tasks during implementation and debugging.
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FAQ
JS Minifier questions.
Is this a replacement for Terser or SWC?
No. It is a lightweight browser tool for snippets. Use a production minifier in your build system for shipped bundles.
Does it rename variables?
No. It removes comments and extra whitespace, but it does not perform advanced mangling or tree shaking.
Custom software