What is code minification?

Minification removes whitespace, comments, and unnecessary characters from CSS and JavaScript without changing the code's behavior. It reduces file size, which improves download speed and page load time.

Does minification affect performance?

Yes, positively. Smaller files download faster, especially on slow connections. Minified JavaScript also parses slightly faster because the engine processes fewer characters. Typical savings are 20–40% for CSS and 30–60% for JavaScript.

Should I minify in development?

No. Minified code is unreadable and hard to debug. Minify only for production builds. Use source maps to enable debugging of minified code when needed.

How to Minify CSS and JavaScript for Production

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