QuteCom
QuteCom is a community of enthusiasts and developers, creating free software products related to communication over IP. The flagship product of the QuteCom project is a softphone which allows you to...
View ArticleMumble
Mumble was the first and is the most successful and wide spread free and open source software for VoIP. It was the first VoIP software to provide low-latency audio suitable for gaming, and at the same...
View ArticlePsi+
Psi+ is a development branch of http://alternativeto.net/software/psi/ IM XMPP/Jabber client. Psi is a cross-platform powerful XMPP/Jabber client (Qt, C++) designed for the Jabber power users.
View ArticleEkiga
Ekiga (formely known as GnomeMeeting) is an open source VoIP and video conferencing application for GNOME. Ekiga uses both the H.323 and SIP protocols. It supports many audio and video codecs, and is...
View ArticleTox
With the rise of widespread government monitoring programs, Tox is an easy to use application that allows you to connect with friends and loved ones without anyone else listening in. Tox is built with...
View ArticleEmpathy
Empathy is a messaging program which supports text, voice, video chat, and file transfers over many different protocols. You can tell it about your accounts on all those services and do all your...
View ArticleDigsby
Digsby is a multiprotocol IM client that lets you chat with all your friends on AIM, MSN, Yahoo, ICQ, Google Talk, and Jabber with one simple to manage buddy list. Its also a social networking tool...
View ArticleSignal
TextSecure and RedPhone have been merged to create Signal! Using Signal, you can communicate instantly while avoiding SMS fees, create groups so that you can chat in real time with all your friends at...
View ArticleRing
Ring gives you a full control over your communications and an unmatched level of privacy.
View ArticleJitsi
Jitsi (previously SIP Communicator) is an audio/video and chat communicator with full end-to-end encryption that supports protocols such as SIP, XMPP/Jabber, ICQ/AIM, Windows Live, Yahoo!,...
View ArticleLinphone
Linphone is an internet phone or Voice Over IP phone (VoIP). With Linphone you can communicate freely with people over the internet, with voice, video, and text instant messaging. Linphone makes use of...
View ArticleHubl.in
Hubl.in is a free and open source video conference solution built with love and ethic. It's the best way to initiate a communication anywhere with anybody and brings real time conversation to the next...
View ArticlePeerio
Peerio is a simple way to send private messages and files and store them in the cloud. Everything inside Peerio is end-to-end encrypted by default, meaning no one but you and your intended recipients...
View ArticleYakYak
What does it do: * Send/receive chat messages * Create/change conversations (rename, add people) * Leave/delete conversation * Notifications * Toggle notifications on/off * Drag-drop, copy-paste or...
View ArticleVector.im
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, filesharing, voice and video conferencing (beta...
View ArticleRocket.Chat
Rocket.Chat is a Web Chat Server, developed in JavaScript, using the Meteor fullstack framework. It is a great solution for communities and companies wanting to privately host their own chat service or...
View ArticleMatrix.org
Matrix.org is a growing ecosystem for open, decentralised chat, VoIP and IoT communication. The Matrix project defines an open baseline standard of RESTful HTTP APIs alongside open source,...
View ArticleZeroChat
An IRC-like internet chatroom hosted on ZeroNet, a distributed network. 0rc is a fully distributed website, and messages are shared through peers using the ZeroNet stack. In addition, making a new...
View ArticleLet's Chat
Self-hosted chat for small teams. Features and Stuff BYOS (bring your own server) Persistent messages Multiple rooms New message alerts / notifications Mentions (hey @you) Image embeds Code pasting...
View ArticleMattermost
Mattermost is an open source, self-hosted https://alternativeto.net/software/slack/ -alternative As an alternative to proprietary SaaS messaging, Mattermost brings all your team communication into one...
View ArticleJitsi Meet
Jitsi Meet is an OpenSource (MIT) WebRTC JavaScript application that uses Jitsi Videobridge to provide high quality, scalable video conferences.
View ArticleOrbit
Instant messaging rooms for the distributed network IPFS Common open source code : https://github.com/haadcode/orbit
View ArticleAtomJump.com
AtomJump.com is a well tuned installation of the free open-source AtomJump Loop Server. It is free to chat publicly with your family, group or co-workers on your own group. There is no download...
View ArticleWire
Wire is a secure and private messenger for phones, tablets and desktop. Crystal clear voice and video calls, private group chats, file sharing, audio and video messages - everything is end-to-end...
View ArticleVideoMeeting
VideoMeeting is a free and open source video conference solution built to have video calls and chats using your web browser. It is deployed on top of hubl.in. It is a pure web application based on...
View ArticleTinode
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), persistent storage RethinkDB. JSON...
View ArticleEmoty
Emoty is a messaging application with emphasis on simplicity, freedom and safety. It's a client for RetroShare network, hence use the same decentralized, Friend-to-Friend network structure with...
View ArticleZulip
Zulip is a group chat app. Its most distinctive characteristic is that messages are threaded by topic, helping you have long-running, organized conversations. Zulip's threading makes it easy for people...
View ArticleFranz
Franz is a free messaging app / former Emperor of Austria and combines chat & messaging services into one application. Franz currently supports Slack, WhatsApp, WeChat, HipChat, Facebook Messenger,...
View ArticleNextCloud Talk
Nextcloud Talk is a fully on-premises audio/video and chat communication service. It features web and mobile apps and is designed to offer the highest degree of security while being easy to use....
View ArticlesipXcom
sipXcom provides complete enterprise-grade telephony, unified messaging, Instant messaging, audio conferencing, and many other features. sipXcom can be run along side your existing Cisco, Avaya, Mitel,...
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