JavaScript Compressor

Compress JavaScript source code by removing comments and unnecessary whitespace directly in your browser.

Compression Options

0

Input Characters

0

Output Characters

0%

Size Change

0%

Compression

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About JavaScript Compressor

JavaScript Compressor is a free online tool that reduces the size of JavaScript source code by removing comments and unnecessary whitespace. The compression process runs directly in your browser without executing the supplied JavaScript.

How To Use

  1. Paste your JavaScript code into the input box.
  2. Select the compression options you need.
  3. Click Compress JavaScript.
  4. Review the compressed JavaScript.
  5. Copy or download the compressed output.

Features

  • Browser-based JavaScript compression.
  • Removes JavaScript comments.
  • Removes unnecessary whitespace.
  • Normalizes duplicate semicolons.
  • Preserves strings and template literals.
  • Does not execute supplied JavaScript.
  • Copy compressed code.
  • Download compressed JavaScript.
  • Shows compression statistics.
  • No registration required.

Frequently Asked Questions

What does a JavaScript Compressor do?

It reduces the size of JavaScript source code by removing comments and unnecessary whitespace while preserving the source text structure handled by the tool.

Does this tool execute my JavaScript?

No. The compressor processes JavaScript as source text and does not execute the supplied program.

Is my JavaScript uploaded to a server?

The compression process is performed directly in your browser.

Can I copy the compressed JavaScript?

Yes. Click the Copy Output button to copy the compressed JavaScript to your clipboard.

Can I download the compressed JavaScript?

Yes. The Download button creates a JavaScript file containing the compressed output.

Is this the same as JavaScript obfuscation?

No. Compression primarily reduces source-code size. It does not provide the same code protection or transformation techniques as JavaScript obfuscation.