What underrated GitHub / Gitlab project has helped you a lot?

Question

So I come across these nice projects on GitHub that have very few stars but I believe they deserve so much more because of how well they're written. I personally used projects like IGraphM and swift-emacs in college when they were relatively unknown and am happy to see them do better now.What are some such projects for y'all?

dschuessler · Accepted Answer

Probably the most underrated software I use daily are some of my Firefox extensions.
https://github.com/einaregilsson/Redirector redirects my YouTube, Google, Twitter and Reddit links to privacy friendly frontends (i.e. Invidious, Startpage, Nitter and Libreddit).
https://github.com/proginosko/LeechBlockNG helps me staying away from time sinks on the internet during the day.
On the development side I use...
https://github.com/aaronvegh/nsregextester as my tried and true tool for regex debugging.
https://github.com/mhutchie/vscode-git-graph turns VSCode into a marvelous Git GUI.