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JavaScript Minifier

Minify JavaScript code by removing whitespace and comments

JavaScript Minifier Online

JavaScript minification removes unnecessary characters—like whitespace, comments, and line breaks—from JavaScript source code without changing how it runs. This reduces the file size of your JavaScript files, which improves page load times.

What Gets Removed

  • Single-line comments (// ...)
  • Multi-line comments (/* ... */)
  • Leading and trailing whitespace
  • Multiple consecutive spaces/newlines

Important Note

This tool performs basic JS minification. For production use with complex JavaScript, we recommend using professional build tools like webpack, Rollup, or Terser which handle edge cases and can also perform tree-shaking and code splitting.