JavaScript Minifier and Beautifier

Smaller scripts or readable code, without sending it anywhere.

Your files stay with you. Your files never leave your browser. This tool runs on your device: nothing is uploaded to our servers, so there is nothing for us to store or see.

How to use it

  1. Paste your JavaScript or open a .js file.
  2. Choose Minify or Beautify.
  3. Copy or download the result.

Questions people ask

Is this as small as Terser or UglifyJS?
No. It only removes comments and whitespace, so it saves less than tools that also shorten variable names. In return it cannot break your code by renaming things.
Can it break my code?
It keeps line breaks wherever removing them could change the meaning (JavaScript sometimes relies on them instead of semicolons), and it never touches strings, template literals or regular expressions. Always test the minified file.
Does the beautifier restore original variable names?
No. Minifiers that rename variables lose the original names for good. Beautifying only restores spacing and indentation.
Is my code uploaded?
Your text is processed in your browser and never sent to our servers. That makes it safe for private source code.

Want this inside your own account?

Marketiism keeps your invoice numbers, GST reports, UPI payment links and WhatsApp reminders in one place. Leave your details and we'll call to set it up for your business, or start the trial yourself.

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Try it on your own business for two weeks.

14 days free, no card. If you get stuck setting up WhatsApp, we'll get on a call and do it with you.