Comms

Realtime rooms, inboxes, and the sockets that keep people talking.

26 tools · 21 open-source

LiveKitApache-2.0 realtime rooms, SFU, and agents21.7k
ChatwootMIT-core support inbox you can self-host for $0/agent38k
Socket.IOMIT realtime library with fallbacks, not a hosted product63.2k
PlunkAGPL-3.0 transactional email, workflows, and broadcasts5.5k
CentrifugoApache-2.0 Go realtime server binary, not in-process Socket.IO10.9k
LiveblocksHosted collab rooms; Free $0 pauses at the cap4.8k
YjsMIT CRDT library, not a hosted collab product23k
MercureAGPL-3.0 SSE hub; homepage still says MIT5.4k
NATSApache-2.0 subject-based messaging and streaming fabric20.9k
AnyCableMIT realtime for Action Cable with delivery guarantees2.4k
mediasoupISC embeddable SFU as a Node module or Rust crate7.4k
PeerJSMIT browser P2P WebRTC with free cloud or self-host signaling13.5k
MauticGPL-3.0 self-host marketing automation; hosted trial is not free10.8k
Janus GatewayGPL-3.0 plugin-core WebRTC gateway (SIP, VideoRoom, streaming)9.2k
SocketClusterMIT Node pub/sub+RPC+JWT with SCC scale-out6.2k
Laravel ReverbMIT first-party Laravel WebSocket server1.6k
TuwunelApache-2.0 Matrix homeserver; official conduwuit successor2.7k
Eclipse MosquittoEPL-2.0 / BSD-3 MQTT broker; OSS self-host forever free11.3k
SockudoMIT Rust Pusher V1 edge + Protocol V2 recovery/history/push827
PartyKitMIT realtime rooms on Cloudflare Durable Objects; pay CF Workers only1.3k
Jitsi MeetApache-2.0 self-host Meet + free meet.jit.si; JaaS optional30.1k
gathoMIT self-host WebSocket rooms toolkit; no Cloud product83
TrysteroMIT serverless WebRTC rooms via Nostr/MQTT/BitTorrent/IPFS2.8k
OwncastMIT self-hosted live streaming and chat server11.6k
ZulipApache-2.0 team chat organised by topic threads; self-host or use Zulip Cloud26.1k
SynapseAGPL-3.0 reference Matrix homeserver from Element, in Python and Rust4.7k

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