Cost / License
- Free
- Open Source (GPL-3.0)
Application types
Platforms
- Windows
- Linux
- Ubuntu Touch
- Snapcraft
- Flathub
- Flatpak
- Linux Mobile




Nextcloud Talk is described as 'Fully self-hosted communication platform for audio, video, and chat with advanced encryption, metadata privacy, screensharing, and web conferencing features' and is a instant messenger in the social & communications category. There are more than 100 alternatives to Nextcloud Talk for a variety of platforms, including Web-based, Android, iPhone, Windows and Mac apps. The best Nextcloud Talk alternative is Signal, which is both free and Open Source. Other great apps like Nextcloud Talk are Jitsi Meet, SimpleX Chat, Slack and Proton Meet.




Quaternion is a cross-platform Qt5-based desktop IM client for Matrix, a reference desktop application using libQMatrixClient. Source code, issue tracker, roadmap etc. can be found at GitHub. Releases (with links to cross-platform source code archives, as well as binaries for...


A true P2P phone application for voice and video calls. No Internet access needed, no registration, not advertisment or calling back "home". Scan each others QR-Code and call each other. This works in over local networks such as community and company networks or at...




Chitchatter is a free (as in both price and freedom) communication tool. Designed to be the simplest way to connect with others privately and securely, it is:

Converse is a messaging app for decentralized, secure, end-to-end encrypted conversations. Built on the XMTP network, Converse lets you own your conversations and take them anywhere whenever you want, ensuring your most important messages—the ones you never want to lose or be...




WorkChat streamlines collaboration for businesses. Connect seamlessly with team and clients, integrating WhatsApp, Skype, and Messenger to manage cross-channel messaging.




A secure video conferencing solution for businesses of all sizes. With focus on digital sovereignty and data protection.








Mostlymatter is a fork of Mattermost meant to remove the users and messages limits. Mattermost is an open source platform for secure collaboration across the entire software development lifecycle.

alfaview is an in-sync high-tech video conference solution that enables you to hold online meetings across the world with live video transmission.




Spreed is the worldwide unified web conferencing service offering integrated web and telephone conferencing. It is based on Flash Player. Free service includes 3 attendees and max 1.5h meetings. Single events or monthly service can be purchased.

World easiest, most straight forward, no installation, web-based video conferencing tool. Supports mobile, browser and AI minutes.



