Available options (Internet-related applications and services)

Video

Invidio. Access to YouTube, advertised as "ads-free, privacy-friendly". Extension for Firefox avaialble (Invidition).

Web search

Qwant
Searx. List of Searx public instances

Web search for research papers

Scinapse

Web browser

Firefox, of course

Mail

Protonmail
Tutanota
Disroot

Translation

Apertium
DeepL (non-FOSS)

Maps

OpenStreetMap
Qwant Maps

Office tools

Social networks

Diaspora

Microblogging

Mastodon
Nitter. For browsing Twitter.

Instant messaging

Signal
Matrix. A good client (mobile app, web service) for it is Riot.im

Videoconference

Buying

Buying books

BetterWorldBooks

More options

How to contribute

If you want to add some service / application, or fix any error, please pull request to this repository. You can also open an issue.

Acknowledgements

Thanks to @Shine_McShine at Twitter, who wrote the thread giving origing to this page