JS Minifier

Removes extra whitespace and comments from JavaScript. This tool is intended for quick cleanup and learning purposes — not a replacement for production build tools such as esbuild, Terser, or Webpack.

Example

This tool removes whitespace and comments only. It does not perform tree-shaking, dead code elimination, or variable mangling.
For production use, consider esbuild, Terser, or Webpack.

Input:  // comment
        const x = 1;
Output: const x=1;