Awesome Open Source accounts on Mastodon.
Open Source
Heroic Games Launcher
@[email protected]An Open source GOG and Epic Games Launcher for Linux, Windows, and macOS.
GrapheneOS
@[email protected]Open source privacy and security focused mobile OS with Android app compatibility.
Tuta
@[email protected]Tuta is a secure email, calendar and drive provider with quantum-safe encryption. Open source & forever free! 🔒️
Visit us 👉️ http://tuta.com
Made with ❤️ in Europe
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).
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
Digitalcourage
@[email protected]Gemeinnütziger Verein für eine lebenswerte Welt im digitalen Zeitalter.
Seit 1987 mischen wir uns ein, wenn Grundrechte unter Druck geraten.
Datenschutz, Demokratie & Fediverse statt Überwachung, Kommerz & Digitalzwang.
#bba #DigitaleSelbstverteidigung #DigitaleMündigkeit #Fediverse #Freiheit #Datenschutz #foss #floss #technikfolgen #linux #bielefeld #art #Kunst #Digitalzwang
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 😊
DAVx⁵ 
🔄
@[email protected]
The all-in-one CalDAV/CardDAV/WebDAV solution for Android.
Sync your address books, calendars + tasks/notes/journals at once. Get live access your WebDAV files. And… it's FOSS!
Account has also news for ICSx⁵ (Webcal for Android).
Godot Engine 
@[email protected]
Your free, open-source game engine 🎮🛠️
Develop your 2D & 3D games, cross-platform projects, or even XR ideas!
Gaël Duval - /e/OS & Murena
@[email protected]Founder Mandrake Linux (1998) / Ulteo (2006) / /e/OS & Murena (2017) https://gaelduval.com
--> Murena & /e/OS assistance: https://murena.com/contact-us/
--> support /e/OS at: https://www.patreon.com/m/efoundation
Open Bioinformatics Foundation
@[email protected]The Open Bioinformatics Foundation (OBF) is a non-profit, volunteer-run organization that supports #OpenSource #bioinformatics. Our member projects include #BioPerl, #BioJava, #BioRuby and #Biopython. We run an annual meeting, the Bioinformatics Open Source Conference (@BOSC).
Hylke Bons 🥜
@[email protected]product designer who codes.
I design and build software.
both how it looks, and how it works.
🌱 laid off in 2026 and now running free design services for #FOSS projects. want to become a sponsor? https://planetpeanut.studio/sponsors 🌱
been doing design in #OpenSource like #GNOME, #Pidgin, #Intel, #RedHat, #Xamarin, #VSCode and more for 2 decades. enjoy creating #PixelArt #RetroGames for #GameBoy / #NES.
loves 🍵, 📷, and 🌌.
#NoAI in my work.
AkaSci 🛰️
@[email protected]SatCom Scientist
Writing occasionally about science, space missions, astronomy, planetary science, satellites, Democracy and human rights.
He/Him
#science #space #technology #astronomy #satcom #Democracy
knoppix
@[email protected]IT Manager | FOSS & Privacy Advocate ✨
Sharing key tech news and insights that matter
Not an official Knoppix page, just a fan 🐧
#Technology #Privacy #Linux #OpenSource
⚠️ Posts auto-delete after 1 month
*Except bookmarked or high engagement
Open Transport 2026
@[email protected]The (un)conference about Free Software and Open Data for mobility and public transport.
Save the date: October 6-9 in Bern, Switzerland
NLnet Labs
@[email protected]Dutch #NonProfit foundation proudly serving the Internet community since 1999 with #OpenSource software for #DNS and #BGP. Applied research, open standards advocates, bridging technology and policy.
#Clang origins, now #rustlang aficionados. The people behind Unbound, NSD, Routinator, Cascade and much more...
Note: We are not @nlnet, nor are we funded by them or affiliated with them. Lots of 💚 for what they do though!
Grow Your Own Services 🌱
@[email protected]Encouraging non-technical people and organisations to set up their own online services instead of relying on massive corporations.
All the recommended services are free and open source, and available through managed hosting providers. You can find out more on my website at https://growyourown.services
🚫 Completely opposed to LLMs, generative AI, cryptocurrency, "web3", NFTs, blockchain, defi, daos etc. They are scams disguised as tools.
Maintained by @FediThing
The Late Night Linux Family
@[email protected]Podcasts about Linux, open source, systems administration, development, and cloud.
michael9
@[email protected]tldr; Artist. Engineer. Wizard.
North Carolina, USA
#music #diy #furniture #studio #design #vfx #cad #film #filmmaker #musician #singer #photography #indieweb #foss #creativity #metaphysics
Linuxiac
@[email protected]Latest news from the Linux world and open-source software. Reviews, analyses, tutorials, and more—everything FOSS, all in one place.