HTML / CSS / JS Minifier

What minification does

Minifying code removes unnecessary whitespace, line breaks, and comments without changing how the code behaves, reducing file size so pages load faster. This is a basic minifier suitable for quick compression — for production builds, a dedicated build tool is usually preferable for more thorough optimization.

Select the language tab that matches your code, paste it in, and click Minify to see the compressed result along with the size reduction.

When to minify

Minification matters most for production websites, where smaller CSS and JS files mean faster page loads, especially on slower connections. It's generally not needed during development, where readable, unminified code is easier to work with and debug.