JavaScript Minifier

Minify JavaScript with Terser while preserving variable names and keeping code compression disabled.

Input

How javascript minifier works

The JavaScript parser removes unnecessary formatting while retaining token boundaries and selected license comments.

Enter your values or text in the tool form.
Review the result as you change the inputs, or select the action button for code tools.
Copy the result or download it where a download option is available.

A formatted greet function becomes a compact function without merging string contents or operators.

Input must be valid JavaScript. TypeScript and JSX require transpilation first; code is parsed but never executed here.

How does javascript minifier work?

The JavaScript parser removes unnecessary formatting while retaining token boundaries and selected license comments.

What should I check before using the result?

Input must be valid JavaScript. TypeScript and JSX require transpilation first; code is parsed but never executed here.

Is JavaScript Minifier free to use?

Yes. JavaScript Minifier is free, browser-based, and does not require signup.

Does this tool save my data?

Tool inputs are processed on your device. File tools do not upload your files. Website analytics are described in the privacy policy.

Can I use it on mobile?

Yes. The page is responsive and works on modern mobile, tablet, and desktop browsers.

Format and validate JSON with readable indentation and clear parse errors.

Encode Unicode text to Base64 or decode Base64 into UTF-8 text.

Encode a URL component or decode percent-encoded text for query values and links.

Reduce HTML whitespace with a parser while preserving comments, scripts and style contents.

Reviewed 2026-10-24. By Mahad and Mehdi Developers.