Web browser
Firefox
Vivaldi

Web browser extensions
uBlock Origin
Keepa

Email service provider
Mailo

Internet search engine
Ecosia
DuckDuckGo
You (Beta)

XMPP client
Monal (iOS/macOS)

Distribution
YunoHost

OpenPGP
GnuPG

DNS service provider
Quad9

AI translation technology
DeepL

Note taking
Obsidian

Image editor
GIMP - GNU Image Manipulation Program
INKSCAPE

Computer Graphics
Blender

Video recording and live streaming
OBS - Open Broadcaster Software

Blog service provider
Neocities