JavaScript Minifier
Minify JavaScript code by removing comments and whitespace
How JavaScript Minification Works
JavaScript minification reduces file size by removing characters that are not required for execution.
What Gets Removed
- Single-line comments:
// comment
- Multi-line comments:
/* comment */
- Excess whitespace: Multiple spaces, tabs, and indentation.
- Newlines: Unnecessary line breaks between statements.
Limitations
This basic minifier does not rename variables, remove dead code, or perform tree-shaking. For those features, use build tools like Webpack with Terser.
Frequently Asked Questions
What does JS minification do?
JS minification removes comments, whitespace, and newlines to reduce file size and improve load performance.
Is this the same as obfuscation?
No, this only removes whitespace and comments. Obfuscation also renames variables and restructures code. Use Terser or UglifyJS for that.
Will minification break my code?
Basic minification should not break properly written JavaScript. Always test minified code before deploying to production.