The most popular Open Source accounts on Mastodon.
Open Source
The Tor Project
@[email protected]We advance human rights and defend your privacy online through free software and open networks.
Elena Rossini 🌈
@[email protected]Italian filmmaker, photographer and writer based in Paris, France who ❤️ #FOSS
🎬 Director of: The Illusionists documentary + a Fediverse promotional video (https://blog.elenarossini.com/fediverse-video/)
💌 #TheFutureIsFederated
📝 blog: @ele
👩💻 self-hosting aficionada: @elena
🏳️🌈🏳️⚧️ ally
Pronouns: she/her
Languages: English, French, Italian
Note: my posts are set to auto-delete* after 1 week ⏳
*unless I bookmark them
David Revoy
@[email protected]🍄 Webcomic Artist • Fantasy humor
🌱 Weekly comic strips (Wed) • Longer series brewing in background
🎨 Only use Free/Libre & Open Source tools • CC-licensed • No AI
Codeberg
@[email protected]We are a non-profit, community-led organization that helps free and open source projects prosper. Our services include Git hosting (https://codeberg.org, using @forgejo), Weblate, Woodpecker CI and Pages.
To receive assistance (faster), request features or report problems, see: https://docs.codeberg.org/contact
This account is volunteer-run; we are only active for a few hours per week, so we may not be able to respond to your inquiry.
Status: @codebergstatus · https://status.codeberg.eu
Open Source Programme Office
@[email protected]The go-between for all things open source in the European Commission
nixCraft 🐧
@[email protected]Enjoy Linux & Unix-like systems, open-source software, and programming? Into Sysadmin & DevOps? Follow us to make the most of your IT career! Discover new tools, IT news, and apps daily, plus a dose of humor.
European Commission
@[email protected]News and information from the European Commission. A project to foster our presence in the fediverse and support our commitment to European social media platforms based on open source technology. 🇪🇺 Official Mastodon account as verified by the official EU domain in our server’s address (https://europa.eu).
Bellingcat
@[email protected]Bellingcat is an independent investigative collective of researchers, investigators, and citizen journalists brought together by a passion for open source research.
Want to support our charity? http://bellingcat.com/donate/
Buy our book "We Are Bellingcat" here: http://bit.ly/2EP09EN
Our award-winning podcast series: http://apple.co/36LJURI
Tuta
@[email protected]Tuta is a secure email, calendar and drive provider with quantum-safe encryption. Open source & forever free! 🔒️ Get off 50% NOW during our Digital Sovereignty Week!
Find out how 👉 https://tuta.com/digital-sovereignty
Visit us 👉️ http://tuta.com
Made with 💛 in Europe
/e/OS - deGoogled mobile OS
@[email protected]We build desirable, open source, privacy-enabled smartphone operating systems. We are /e/OS
Visit us at https://e.foundation/
Support:
- Forum: https://community.e.foundation/
- Murena Help Desk: https://murena.com/contact-us/
Home Assistant
@[email protected]Open source home automation that puts local control & privacy first. Powered by a worldwide community of tinkerers & DIY enthusiasts.
Fedilab Apps
@[email protected]This account is dedicated for news about FOSS apps: Fedilab, TubeLab, UntrackMe, OpenMultiMaps
Simon Willison
@[email protected]Open source developer building tools to help journalists, archivists, librarians and others analyze, explore and publish their data. https://datasette.io and many other #projects.
Godot Engine 
@[email protected]
Your free, open-source game engine 🎮🛠️
Develop your 2D & 3D games, cross-platform projects, or even XR ideas!
A worldwide technology community 🌍 Creators of the Plasma desktop & a variety of Free and open source applications that let you control your digital life.
Nextcloud 📱☁️💻
@[email protected]A safe home for all your data, community-driven & open source!
https://nextcloud.com
Join us at https://help.nextcloud.com and https://github.com/nextcloud 😊
Anke Domscheit-Berg
@[email protected]Publizistin, Netzaktivistin u ehem. digitalpolitische Sprecherin der Linken im Bundestag (MdB: 2017-2025). #Nachhaltigkeit #OpenSource #OpenEverything #ITSicherheit #DigitaleGewalt #digitaleVerwaltung bluesky: @anke.domscheit-berg.de (stillgelegt: Twitter/X: @anked)
Christine Lemmer-Webber
@[email protected]Executive Director of @spritely (but this is a personal account). I'm here to fix the Internet.
ActivityPub co-author, co-host of @[email protected]. Lisp sourceress, decentralized network architect, occasional Blender artist. she/her https://dustycloud.org/
Recently moved here from @[email protected]
Lovely banner sketch by @juliaro https://mastodon.art/@juliaro/114489465896761273
Fedora Project
@[email protected]This is the official feed for the Fedora Project, a global free & open source software community sponsored by Red Hat.
We make Fedora Linux - an innovative free & open source operating system for computers, clouds, containers, and other hardware platforms.
Sarah Jamie Lewis
@[email protected]Cryptography and Privacy Researcher. President @ Open Privacy Research Society (@openprivacy).
Founder @ Blodeuwedd Labs (@blodeuweddlabs)
Building free and open source, privacy-enhancing, surveillance-resisting tech like Cwtch (@cwtch)
Sovereign Tech Agency
@[email protected]Strengthening digital infrastructure and open source ecosystems in the public interest. Home of the Sovereign Tech Fund, Sovereign Tech Resilience, Sovereign Tech Fellowship, and other programs supporting critical FOSS technologies.