Mastodonmastodon/mastodon
Self-hosted social network in the fediversePersonalEnterpriseSelf-hosted appsCommunicationWebDocker / self-host★ 50kAGPL-3.0commit 19 hours ago89worth
Best open-source communication tools
Open-source team chat, messaging and collaboration software.
38 projects · showing 1–20
ntfybinwiederhier/ntfy
Push notifications to phone or desktop with a simple POSTPersonalSelf-hosted appsCommunicationDocker / self-hostMobile★ 35kApache-2.0commit 4 days ago85worth
Socket.IOsocketio/socket.io
Realtime bidirectional communicationPersonalEnterpriseWeb frameworksCommunicationLibrary / SDK★ 63kMITcommit 4 days ago84worth
Nextcloudnextcloud/server
Self-hosted file sync, sharing and collaborationPersonalEnterpriseSelf-hosted appsCommunicationWebDocker / self-host★ 37kAGPL-3.0commit 10 hours ago83worth
Zulipzulip/zulip
Open-source team chat with topicsPersonalEnterpriseCommunicationDocker / self-host★ 26kApache-2.0commit 10 hours ago83worth
Buzz (Block)block/buzz
Hive mind communication platformPersonalEnterpriseCommunicationDesktop★ 35kApache-2.0commit 11 hours ago82worth
FoloRSSNext/Folo
AI-powered RSS readerPersonalCommunicationWebDesktopMobile★ 39kAGPL-3.0commit 17 hours ago81worth
Postizgitroomhq/postiz-app
Agentic social media schedulingPersonalEnterpriseAutomationCommunicationDocker / self-host★ 37kAGPL-3.0commit 14 hours ago81worth
LiveKitlivekit/livekit
Realtime stack for humans and AIPersonalEnterpriseAI & LLM toolingCommunicationDocker / self-host★ 21kApache-2.0commit 2 days ago81worth
Elementelement-hq/element-web
Secure messaging client for the Matrix networkPersonalEnterpriseCommunicationWebDesktop★ 14kAGPL-3.0commit 16 hours agolive demo81worth
Hulyhcengineering/platform
All-in-one project management platformPersonalEnterpriseSelf-hosted appsCommunicationDocker / self-host★ 28kEPL-2.0commit yesterday80worth
SimpleX Chatsimplex-chat/simplex-chat
Private messenger without user IDsPersonalSecurity & identityCommunicationDesktopMobile★ 20kAGPL-3.0commit 19 hours ago80worth
Pipecatpipecat-ai/pipecat
Framework for voice agentsPersonalEnterpriseAgents & frameworksCommunicationLibrary / SDK★ 16kBSD-2-Clausecommit 19 hours ago80worth
Thunderbird for Androidthunderbird/thunderbird-android
Open-source email app for AndroidPersonalCommunicationMobile★ 14kApache-2.0commit 17 hours ago80worth
Rocket.ChatRocketChat/Rocket.Chat
Communications platform with full data controlEnterpriseCommunicationWebDocker / self-hostDesktopMobile★ 46kcommit 8 hours ago79worth
Mattermostmattermost/mattermost
Secure collaboration for technical teamsEnterpriseCommunicationWebDocker / self-hostDesktop★ 39kcommit 11 hours ago79worth
Telegram Desktoptelegramdesktop/tdesktop
Official Telegram desktop appPersonalCommunicationDesktop★ 33kGPL-3.0commit 23 hours ago79worth
Signal for Androidsignalapp/Signal-Android
Private messenger for AndroidPersonalCommunicationMobile★ 29kAGPL-3.0commit 21 hours ago79worth
React Emailresend/react-email
Build emails with ReactPersonalEnterpriseWeb frameworksCommunicationLibrary / SDK★ 20kMITcommit 20 hours ago79worth
LangBotlangbot-app/LangBot
Platform for agentic chat botsPersonalEnterpriseAgents & frameworksCommunicationDocker / self-host★ 18kApache-2.0commit 18 hours ago79worth
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