Free open source end-to-end encrypted peer-to-peer calling and messaging app. It supports video calls, audio, messaging and has a Skype-style interface. It has apps for all major platforms including Android, iPhone/iPad, Linux, Mac and Windows.
Fediverse address:
@Jami@mstdn.io
Online fork of the LibreOffice productivity suite aimed at businesses, including long term tech support, admin tools, smartphone apps and cloud collaboration.
Fediverse address:
@CollaboraOffice@mastodon.social
Its development company, Collabora, is one of the biggest upstream contributors to LibreOffice’s source code, and has a close relationship with the FOSS community.
Fediverse address:
@collabora@floss.social
Privacy-friendly free open source online office suite. It can be self-hosted, or you can use the official instance. It’s collaborative and anonymous, with “zero knowledge” encryption so no one can access your data except you and those you choose to share with.
Fediverse address:
@cryptpad@fosstodon.org
Free open source self-hostable personal cloud software for sharing files, collaborative editing, instant messaging, personal music streaming etc.
Fediverse address:
@nextcloud@mastodon.xyz
Non-profit hosting service for FOSS projects, their source code and their development. Powered by the self-hostable FOSS forge software Forgejo (which Codeberg helped to fork from Gitea).
Fediverse address:
@Codeberg@social.anoxinon.de
Free open source self-hostable software forge, a community fork of Gitea supported by Codeberg. Federation of forges through ActivityPub planned.
Fediverse address:
@forgejo@floss.social
The popular free open source desktop email app, available for Linux, Mac and Windows. As well as email, it also works as an RSS news reader, XMPP client and IRC client.
Fediverse account (main):
@thunderbird@mastodon.online
Fediverse account (videos):
@thunderbird@tilvids.com
Free open source online office suite. There’s an official paid service available, or you can host it yourself for free.
Fediverse address:
@ONLYOFFICE@fosstodon.org
The most popular free open source office suite, it includes a word processor, spreadsheet, presentation software etc. It’s very widely used by businesses, governments, organisations and individuals, and is available for Linux, Mac and Windows.
Fediverse address:
@libreoffice@fosstodon.org
There are also user groups on the Fediverse:
Fediverse address (in Spanish):
@LibreOfficeEs@mastodon.social
Fediverse address (in French):
@LaMouetteODF@framapiaf.org
Free open source 3D game engine, for creating Minecraft-style games and worlds. There’s a large range of game modes and mods available, including online multiplayer. It’s available for Linux, Mac, Windows, BSD and Android.
Fediverse address:
@Luanti@fosstodon.org