JS Minifier
Code Minification: Reduces file size by removing unnecessary whitespace, comments, and line breaks. Essential for improving website loading speed.
Supported: HTML5, CSS3, ECMAScript (ES5/ES6+) standards compliant
JavaScript Minifier removes unnecessary whitespace, comments, and line breaks from JS code to minimize file size. Improve website loading speed and save bandwidth.
How to Use
- 1
Paste your JavaScript code into the input area.
- 2
In Live mode, compression happens automatically.
- 3
Copy or download the compressed JavaScript.
- 4
Check compression rate and bytes saved.
Use Cases
Website Performance
Reduce JavaScript file size to improve script loading speed.
Bandwidth Savings
Save costs, especially when using large JavaScript libraries.
Production Build
Minimize final bundle size with build tools like Webpack or Rollup.
Code Obfuscation
Compression makes code harder to read, providing basic protection.
What is JavaScript Minification?
JavaScript Minification reduces file size by removing unnecessary characters while maintaining functionality.
Whitespace Removal: Removes unnecessary spaces, tabs, and line breaks between tokens.
Comment Removal: Removes all comments (// and /* */).
Variable Renaming: Shortens long variable names (advanced compression).
Typically achieves 30-50% file size reduction.
Frequently Asked Questions (FAQ)
Q.Is my data safe?
A. Yes, completely safe. All compression is done in your browser.
Q.What if minified code doesn't work?
A. Usually works fine, but check the original if there are syntax errors or special cases.
Q.Should I minify during development?
A. No, maintain readability during development. Apply only for production.
Q.How do I generate source maps?
A. This tool provides basic compression. Use Webpack or Terser for source maps.
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