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JS / CSS Minifier

Minify JS with Terser (mangle variable names, compress, drop dead code) plus CSS. Options for mangle/compress/ECMA with clear syntax-error reporting.

Minifies JavaScript and CSS code by removing whitespace and comments, reducing the file size for faster downloads.

How to use Minify JS / CSS

  1. Paste your JS or CSS code.
  2. Select the type.
  3. Copy the minified code.

Frequently asked questions

Does minifying obfuscate the code?

No, minifying only removes unnecessary characters; variable names stay the same, so the code still runs exactly as it did before.

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🔒 JS / CSS Minifier runs entirely in your browser — the data you enter is not sent to any server. Free, no sign-up required. See446 free dev tools more.