Greasy Fork is available in English.
A userscript that adds filters that toggle the view of repo files by extension
< Feedback on GitHub Files Filter
Hi! I just updated it, but GreasyFork isn't accepting the new code. Right now, you can update directly from either the GitHub or from OpenUserJS sites, but you'll need to wait a bit before GreasyFork gets updated. Sorry for the inconvience.
Go to this link for links to the other sources: https://github.com/Mottie/GitHub-userscripts/wiki/GitHub-files-filter
Please, update this script.
It doesn't work anymore since the last forced github redesign.