Psi is a cross-platform powerful XMPP client designed for experienced users. Psi+ is a development branch of Psi with rolling release development model.
Users who wants to receive new features and bug fixes very quickly may use Psi+ on daily basis. Users who do not care about ne.
Fully open source instant messaging server and clients. No proprietary components or non-free dependencies. Backend in pure Go (GPL 3.0), with a command-line administration tool in python + gRPC. Clients for Android, iPhone, and Web - ReactJS (all licensed under Apache 2.0).
Dialog Messenger is a customized self-hosted platform usable across multi operation systems simultaneously. dialog provides SDK tools for client interface as well as for server.
kMeet is an unlimited, free, Swiss solution for organising encrypted video-conferences.
Glip is instant messaging for teams and businesses to communicate and get work done at the same time. In Glip you work where your conversations are, so you always know what your team is doing and what needs to get done next.
Librem Chat offers you an end-to-end encrypted chat application including text, voice, and video for one-on-one calls and large group chats. Based on the universal Matrix chat protocol ensuring you can communicate with people inside or outside the librem.