The most popular Open Source accounts on Mastodon.
Open Source
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).
It's FOSS
@[email protected]World's leading Linux and Open Source web portal.
https://itsfoss.com/
Tuta
@[email protected]Tuta is the secure email service with automatic encryption. We protect your emails from everyone - even from us! Committed to privacy and open source.
David Revoy
@[email protected]🍄 Webcomic Creator | Fantasy humor
🌱 Weekly comic strips | Longer series brewing in background
🎨 Only use Free/Libre & Open Source tools | CC-licensed | No AI
Delta Chat
@[email protected]Secure decentralized messaging for all major platforms and then some. Reliable and instant by using fast and secure Chatmail servers, but also compatible with classic e-mail providers. Offering chat-shared web apps for fun and collaboration, end-to-end encrypted and without any server side hosting. Security-Audited multiple times, last in 2024. #deltachat #chatmail #webxdc #FOSS #OpenPGP #p2p
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)
9to5Linux
@[email protected]We provide breaking news for the latest GNU/Linux distribution and Open Source app releases, latest kernel releases, Raspberry Pi news, Linux tutorials and reviews, and more.
Help keep 9to5Linux alive! Buy us a ☕️ https://ko-fi.com/9to5linux
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)
Brent Simmons
@[email protected]Writes NetNewsWire, a free and open source RSS reader for Mac and iOS.
He/him.
F-Droid
@[email protected]F-Droid is an installable catalogue of FOSS (Free and Open Source Software) applications for the Android platform.
filippodb ⁂ 
@[email protected]
Fondatore e amministratore di mastodon.uno, pixelfed.uno e diggita.com, membro dei @devol
Nei miei server uso Linux ed applicazioni free e open source dal 2004.
Sviluppo siti noprofit (e non solo) dal 1998.
Smanetto ininterrottamente dal 1986: 
Papà dal 2018 e membro del gruppo https://devol.it con cui dal 2019 gestiamo una trentina di servizi liberi: https://servizi.devol.it
Vivo e lavoro fra Milano e Pordenone.
Nitrokey
@[email protected]Secure your digital life with Open Source. Made in Germany. With strong community focus. For secure authentication, data encryption, and key management.
Impressum: https://www.nitrokey.com/de/impressum
Open Source Italia - forgejo
@[email protected]🚀 Dal 2019 siamo Il primo e il più seguito account italiano sull’Open Source e gestori di https://forgejo.it
Novità, approfondimenti su #OpenSource 🖥️ e #FreeSoftware 🐧
Seguiteci anche nel gruppo @opensource
Qui la mappa dei migliori account open source italiani da seguire: https://fedidevs.com/s/NzU2/
Istanza italiana di forgejo, progetti Open Source Italiani: https://forgejo.it
gruppo telegram: https://t.me/+bJOYNC7G8S44Zjdk
NetNewsWire
@[email protected]Free and open source RSS reader for Mac and iOS.
The Late Night Linux Family
@[email protected]Podcasts about Linux, open source, systems administration, development, and cloud.
Karl Voit 
@[email protected]
PIMfluencer
Influencing myself all the time. Rabbit-hole investigator.
Hide my German posts via selecting your preferred language(s) via:
Preferences→Other→Filter languages (will work in future)
I don't fav read toots.
#PIM #FOSS #Emacs #orgmode #Orgdown #bicycle #decentralization #security #privacy #Austria #Graz 
Joined Mastodon 2017-11
Indexed on tootfinder
NOT political correct!
NetBSD Foundation 🚩
@[email protected]We make a fast and secure open source Unix-like operating system for all of your computing devices, whether they be Raspberry Pis, EdgeRouters, ThinkPads, servers, or SPARCstations. Check the about page: https://www.NetBSD.org/about/
We pioneered cross-platform package management with #pkgsrc, anykernels, and TCP/IP in space.
Posts are not official statements.
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 cryptocurrency, "web3", NFTs, blockchain, tokens, defi, daos etc. They are scams.
Maintained by @FediThing
ploum
@[email protected]Joue de la machine à écrire dans un one-man-band pour défendre la liberté et l’imaginaire. Auteur de #Bikepunk.
Write SF and #cyberpunk books, free software and texts about freedom.
Pédale. Plonge dans l’eau froide.
Also on Gemini: gemini://ploum.net
Filippo Valsorda
@[email protected]@FiloSottile elsewhere / Cryptogopher / Go crypto maintainer / Professional Open Source maintainer / RC F'13, F2'17
https://mkcert.dev / https://age-encryption.org / https://filippo.io/newsletter
🕳️ “Gaze not into the abyss, lest you become recognized as an abyss domain expert, and they expect you keep gazing into the damn thing.” —@nickm