Optimize Critical CSS Instantly
No Hassle, Just Faster Loads

Our Critical CSS API renders your page, detects what loads first, and generates the Critical CSS automatically. You don’t have to sort through stylesheets or tweak anything. It gives you exactly what is needed for faster first paint.

If you build templates or themes, then use this API for Critical CSS and help yourself embed critical CSS into each one automatically. You give your users speed by default, without asking them to optimize anything.

You can employ our API in your build or deploy process to generate critical CSS for every page, on the go. That means actual good news; as your whole project stays fast, no matter how big it gets.

Our online critical CSS API doesn’t care what framework you use, be it React, Vue, static sites, or anything else. The reason is that, as a user, you just send a URL and get clean, critical CSS ready to drop in.

You know the best part about our creation is that there is no need to run headless browsers or maintain custom scripts if you have this API. Yes, we are serious. It automates the real task behind critical CSS extraction and saves you time.

Building a CMS, a site builder, or a performance tool has never been easier with this CSS critical path API. It helps you deliver speed without building the logic from scratch, and you get reliable output with zero hassle.