Rocket.Chat

Rocket.Chat is an open-source, self-hostable communications platform combining team chat, voice and video calls, file sharing and omnichannel customer messaging in one deployment, with web, desktop and mobile apps and options for on-premises and air-gapped use.

• Open-source alternative to: Slack, Microsoft Teams
• Licence: NOASSERTION (Custom or unrecognized license)
• Website: https://rocket.chat/
• Source code: https://github.com/RocketChat/Rocket.Chat
• GitHub stars: 46364, forks: 14077
• Topics: team chat, messaging, video calls, self-hosted, communication, chat, collaboration, foss, free, hacktoberfest, javascript, meteor, mit