Privacy friendly and open-source alternatives for your favourite platforms

Youtube
Privacy front-ends:Invidious
Privacy-friendly Desktop client:Freetube
Privacy-friendly Mobile app:Newpipe
Alternatives: Peertube & Odysee

Instant messaging (whatsapp,imessenger etc)
Signal
Session

Instagram
Alternatives: Pixelfed
Privacy front-end: Imginn [since bibliogram is shutdown :( ] to view accounts without an account

Reddit
Alternatives: Lemmy
Privacy front-ends: Libreddit (modern UI) & Teddit (old UI)

Twitter:
Privacy front-end for web: Nitter
privacy-friendly Twitter frontend for mobile devices: Fritter
Alternatives:Mastodon

Discord
Alternatives: Revolt & Element
#privacy #opensource