Advanced WPO: How to minify CSS and Javascript to speed up your website

The loading speed of a website is one of the most important factors both to retain your visitors and to improve your positioning in search engines. In the Web Performance Optimization (WPO) discipline, file minification is a mandatory step.

The cost of formatted code

While developing applications, we use wide spacing, consistent tab stops, and descriptive comments to make the code readable to other engineers.

However, browsers don't care about aesthetics. By uploading these raw files to your production server, you are forcing your users' browsers to download additional kilobytes of empty characters, increasing the initial rendering time (First Contentful Paint).

Minification eliminates this burden, achieving size reductions of up to 40% in your styles and logic files.

To optimize and minify your CSS and JavaScript snippets instantly and privately, use our local tool:

Try our CSS/JS Minifier

Paste your formatted code and instantly get an optimal minified version ready to deploy to your production environment.