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JavaScript minifier

Compress and minify JavaScript with Terser.

  • Free
  • No sign-up
  • Works on any device

About JavaScript minifier

Compress JavaScript with Terser, which removes whitespace and comments, shortens local variable names and drops unreachable code. Smaller scripts download and parse faster. Always test the minified file, and keep the original source, as minified code is very hard to debug without a source map.

How to use JavaScript minifier

  1. Type or paste your text in the box above.
  2. The result appears instantly as you type.
  3. Copy the result or download it as a file.

Why use this tool?

Also known as

Frequently asked questions

Can minified JavaScript break my code?

Rarely, but code that depends on function names or missing semicolons can fail. Test the minified version, and keep the original for editing.

Is JavaScript minifier free?

Yes. JavaScript minifier on Toolipedia is free to use, with no sign-up and no watermark.

Is it safe to use?

Yes. Everything is worked out in your browser, and nothing you enter is sent to our server.

Does it work on my phone?

Yes. It works in any modern browser on Android and iPhone, as well as on tablets and computers. There's nothing to install.

Do I need an account?

No. Just open the page and use the tool. There's no sign-up and no email needed.

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