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JavaScript Minifier

Real AST-based minification — not regex tricks: variable mangling, dead code removal and comment stripping with configurable aggressiveness.

Private processing: this developer tool runs entirely in your browser — your files never leave your device.

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How to use JavaScript Minifier

  1. 1Upload or provide your input
  2. 2Adjust the available options to your needs
  3. 3Click the main action button
  4. 4Wait a moment while the tool processes
  5. 5Download or copy your result

Frequently asked questions

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From the blog

Guides and tips that feature this tool.

PDF Guides

How to Compress a PDF Without Losing Quality

Learn how to shrink large PDF files for email and uploads while keeping text sharp and images readable — with a free online tool.