Openmeetings - Open Source Web Conferencing

•    Java

---

Openmeetings provides video conferencing, instant messaging, white board, collaborative document editing and other groupware tools using API functions of the Red5 Streaming Server for Remoting and Streaming. Meeting can be recorded and screen sharing support is also available.

web-conferencing meetings conference video-conference instant-messaging streaming desktop-sharing

RocketChat - The ultimate open source web chat platform

•    Coffeescript

---

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 for developers looking forward to build and evolve their own chat platforms. Its features include File sharing, Video conferencing, Screen sharing, Live chat, Link preview and lot more.

chat chat-server screen-sharing video-conference slack-alternative webchat instant-messaging im secure-messaging

Jam - Clubhouse for mini conferences, friends, communities

•    Javascript

---

Jam is an open source alternative to Clubhouse, Twitter Spaces and similar audio spaces. With Jam you can create audio rooms that can be used for panel discussions, jam sessions, free flowing conversations, debates, theatre plays, musicals and more. The only limit is your imagination.

audio webrtc jam zoom clubhouse google-meet audio-spaces twitter-spaces clubhouse-alternative conference video-conference

Riot - Messaging and Colloboration made easy

•    Javascript

---

Riot is built on top of Matrix. Matrix is an open network for secure, decentralized communication delivering a community of users,bridged networks, integrated bots and applications plus full end-to-end encryption. Riot allows teams to communicate across a wide range of collaboration apps. If some team members use Riot while others use IRC, Slack or Gitter, Riot will allow these team members to seamlessly work together. Riot offers the richest network of communication bridges.

instant-messaging chat secure-chat mobile-apps group-chat colloboration voip video-conference

Bigbluebutton - Open Source Web Conferencing

•    Scala

---

BigBlueButton is an open source web conferencing system for distance education. It supports sharing of slides (PDF and any document readable by OpenOffice), webcams, whiteboard, chat, voice over IP (using FreeSWITCH), and presenter's desktop. It can record and playback sessions (slides, audio, and chat), runs on Mac, Unix, and PC computers, and is supported by a community of developers that care about good design and a streamlined user experience.

video-conference web-conferencing conference desktop-sharing e-learning collaboration chat

Hublin - An easy and free video conference service

•    Javascript

---

Hubl.in is a free and open source video conference solution built with love and designed with ethics in mind. It's the best way to initiate a communication anywhere with anybody and brings real time conversation to the next level. Hubl.in allows free communication without additional plugins.

video-conference video-chat webrtc im chat conference

Jitsi - Video Calls and Chat

•    Java

---

Jitsi provides Secure Video calls, Conferencing, Chat, Desktop sharing, Instant Messaging, File transfer support for your favorite OS and IM network. Jitsi lets you connect to Facebook, GoogleTalk, XMPP, Windows Live, Yahoo!, AIM, and ICQ so that you can chat to all your friends in the simplest possible way. It supports IPv6, Secure calls with zRTP, Call history, Call hold etc.

video-conference voip skype-alternative internet-phone sip xmpp chat

Matrix - Decentralized group communication

•    Python

---

Matrix is an open standard for decentralised communication, providing simple HTTP APIs and open source reference implementations for securely distributing and persisting JSON over an open federation of servers. It can be used for Decentralised Group Chat, WebRTC signalling, Internet of Things, VOIP etc.

voip webrtc skype-alternative video-conference slack-alternative instant-messaging chat

OpenVidu - Create Custom Video Conference Services

•    Java

---

OpenVidu helps to create custom video conference services. OpenVidu is the only WebRTC technology that allows you to apply real-time audio and video filters. It allows your clients to share their screens. Support for multiple major browsers. Video conferences are secure and private.

webrtc video-conference screen-sharing video-recording

Kopano - Collaboration made easy

•    C++

---

Kopano Core provides the foundation for groupware messaging enabling clients such as Kopano WebApp, Kopano DeskApp, mobile and sync clients. With its modular architecture, Kopano Core enables the possibility for a variety of setup scenarios, scalable from a very low-powered system to a multi-datacenter setup providing messaging capabilities to tens of thousands of users.

groupware collaboration mail-server ldap video-conference web-meetings webrtc calendar chat mattermost video audio screen-sharing

ION - Distributed real-time communication system, let people communicate anydevice, anytime, anywhere

•    Go

---

ION is a distributed real-time communication system, let people communicate anydevice, anytime, anywhere. RTC Public PAAS/SAAS are expensive and limited flexibility. Real Destributed RTC System is not easy. Many Public PAAS/SAAS based on destributed architecture with microservices. This is not a simple cluster architecture. ION make all things easy, from front-end to back-end, will support all platforms, all scene, all protocol.

webrtc real-time-communication conference chat video-conference

Sunrise - Open Video Conference Solution based on HTML5 WebRTC

•    PHP

---

Sunrise is an open video conference solution based on HTML5 WebRTC. You can use this software to talk with your friends, to have online meetings in your company, or to provide enhanced customer service, etc. Enjoy the next generation of the Web with Sunrise VC.

video-conference webrtc video chat