104 Like Riot.im Good alternative? YES NO Riot (formerly Vector) is an opensource interoperable app running on Web, iOS and Android. It is built around chat rooms, both public and private and provides messaging... Free Open Source Linux Web Android iPhone iPad Self-Hosted Chrome Safari ... F-Droid Firefox Decentralized End-to-end encryption Matrix.org protocol Built-in File transfer Encrypted chat GitHub integration ... Group chat Group collaboration Self Hosted Feature Server Moderation Server side history Slack integration Team collaboration Video calling Voice Call Add a feature It is open source, encrypted (end to end), the server is also open source, which means that you or your university could run the server for you. This last point makes it very solid in the long run (like email survived because the protocol was federated). Guest • Feb 2017 • 1 agrees and 0 disagrees Disagree Agree
51 Like Matrix.org Good alternative? YES NO Matrix is an open standard for decentralized persistent communication over IP. It can be used for decentralised group chat, WebRTC signaling, IoT-data transfer, ... Free Open Source Mac Windows Linux Web Android iPhone Android Tablet iPad ... Self-Hosted WebRTC Python JavaScript Go (Programming Language) Java Perl Chat Bot Decentralized Encrypted chat End-to-end encryption Group chat Real time collaboration ... Server side history Team collaboration WebRTC Add a feature
23 Like Kontalk Good alternative? YES NO Kontalk is an open source replacement for WhatsApp. Server and client software are open and hosting your own server is possible but not required. All communication is... Free Open Source Android Self-Hosted No features added Add a feature
23 Like Zulip Good alternative? YES NO Zulip is a group chat app. Its most distinctive characteristic is that messages are threaded by topic, helping you have long-running, organized conversations.... Free Open Source Mac Windows Linux Web Android iPhone BSD Self-Hosted GitHub integration Group chat Group collaboration Integrated File Sharing Team collaboration Add a feature
20 Like Dialog Messenger Good alternative? YES NO 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... Free Personal Mac Windows Linux Web Android iPhone Self-Hosted Encrypted chat Privacy protection Reactions Real time collaboration Team work Text chat Add a feature
1 Like Tinode Good alternative? YES NO Open source instant messaging server and clients. Backend in pure Go (license GPL 3.0), client-side binding in Java for Android and Javascript (license Apache 2.0)... Free Open Source Web Android Self-Hosted No features added Add a feature
1 Like VideoMeeting Good alternative? YES NO VideoMeeting is a free and open source video conference solution built to have video calls and chats using your web browser. It is a pure web application based on WebRTC... Free Open Source Web Chrome OS Self-Hosted Video calling Add a feature
