Does this mangle variable names?

This tool performs basic whitespace and comment stripping. It does not perform advanced AST mangling (like UglifyJS).

Is this safe for production?

Yes, basic whitespace minification is highly stable and will not break valid JavaScript syntax.

JS Minifier Online Free

Minify JavaScript scripts by streamlining code structure and variable layouts. Heavy JavaScript files delay browser interaction times and consumption of data.

Your inputs are processed locally in your browser. Nothing is uploaded to any server.

Source Input

Result Output

How to Use

1Paste your raw JavaScript code into the editor.
2The tool automatically compresses the script by removing whitespace.
3Copy the minified code for deployment.
4Check the output for potential strict-mode syntax issues.

JS Minifier Online Free

How to Use

Frequently Asked Questions