Dino is a free open source XMPP/Jabber app which includes support for encrypted messaging, voice/video calls and conferencing. You can follow at:

➡️ @dino

It's available for many different versions of Linux from dino.im

Senfcall.de is a FOSS-based video conferencing site which aims to provide a privacy-friendly alternative to proprietary services. You can follow them at:

➡️ @senfcall (in German and English)

Their website is at senfcall.de/en (English) and senfcall.de (German)

Calls are made within the web browser using the libre BigBlueButton system.

Jami is a FOSS encrypted peer-to-peer calling and messaging app. You can follow the project here:

➡️ @Jami

It supports video calling, voice calling and instant messaging, with a Skype-style interface.

The app is available for Android (Google Play and F-Droid), iPhone, iPad, Linux, Mac and Windows.

You can find out more from the website at jami.net

The XMPP Standards Foundation develops the XMPP/Jabber instant messaging and voice/video calling standards. You can follow them at:

➡️ @xmpp

The official site is xmpp.org

It's a free open standard, so anyone can use it in their software and hardware.

Senfcall.de is a privacy-friendly free open source video conferencing site which aims to provide an alternative to proprietary services. You can follow them at:

➡️ @senfcall (in German and English)

Their website is at senfcall.de/en

Calls are made via your web browser using the FOSS BigBlueButton system.

Matrix is a free open source federated communications platform with support for messaging and calling. You can follow their official account at:

➡️ @matrix

The platform has many different apps available including the popular Element (formerly known as Riot). The official Matrix site is at matrix.org

Jami is a free open source alternative to Skype, featuring video chat, audio and messaging. You can follow the project here:

➡️ @Jami

Jami is available for Android, iOS, Windows, Mac and Linux. You can get it from the official site at jami.net

It works peer-to-peer, so calls connect directly instead of passing through a server.

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