I was wondering if there was a way to run it on desktop, I'm not too good with computers so I might have just completely missed something. If there is a certain file I need to find I can try to find it, but my wifi is terrible so I am asking if there is a way to open it outside of the browser.
You can use the big red download button at the bottom to download the "Infinitris_v1.0.jar" file. You will need Java (if not already installed) to run it. You can get Java from https://www.java.com/.