CSS remove and combine is a free browser extension available on Chrome. Developed by Steve McArthur, this extension aims to optimize stylesheets by removing unused selectors and combining them into a single file that can be downloaded.

The extension works by creating a new CSS stylesheet that only contains the selectors in use on a page. It eliminates all ID and class-based selectors that reference IDs and classes not present on the page. This not only helps tidy and optimize stylesheets but also reduces the number of HTTP requests by combining them into one file.

CSS remove and combine also provides a quick view dialog that displays information about the number of used and unused selectors on a page. Additionally, it includes a report on the unused selectors, allowing users to verify that the extension is functioning as intended.

Although there have been reports of the extension opening links to other websites, the developer has stated that this is not possible. The extension only interacts with the stylesheets on the current domain. The developer has also addressed the "WebKitBlobBuilder" issue, which rendered the extension unusable.

Overall, CSS remove and combine is a useful tool for optimizing stylesheets and reducing HTTP requests. Users can contact the developer through the extension feedback system or via email at