What free websites/applications do you recommend for mild convenience?

I also had sites I wanted to share: --Swiftread or spreeder, shows one word at a time to read pasted text --12ft ladder, paste sites into this and it'll block ads --Invidious, ad free, viewcount free youtube experience & it doesnt play automatically when you click a video --localingual, interactive map of the world, you can listen to each country's anthem and language