Does this tool alter variable names?

No, this minifier safely removes comments and whitespace without mangling variable names, keeping it safe for fast browser-side execution.

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JavaScript Minifier

Minify JavaScript code client-side to strip comments and shrink file size.

How to Use JavaScript Minifier

1Paste your JavaScript code.
2Click 'Minify JavaScript'.
3Copy the compressed script and review byte reduction stats.

Key Features & Benefits

Strips `//` and `/* */` comments
Collapses redundant whitespace while preserving syntax semantics
Displays before/after size and savings percentage

About JavaScript Minifier

Minify raw JavaScript code directly in your browser. Removes single-line and multi-line comments, collapses whitespace, and calculates exact payload size savings.

Unlike traditional web tools that send your personal data, uploaded photos, or sensitive text to remote cloud servers, our JavaScript Minifier operates strictly inside your client browser sandbox. This guarantees high processing speeds without network throttling, and ensures your data privacy is completely preserved.