18.5
Colyseus is an open-source Node.js framework for building real-time multiplayer games, with matchmaking and state synchronization.
Free planOpen sourceAndroidiOSWeb
Alternatives to Lightstreamer
Lightstreamer is an event broker for reliable real-time delivery to web and mobile applications. It adjusts data flow to network conditions, can resample or combine updates, and selects WebSockets or HTTP for clients facing restrictive firewalls or legacy proxies. Its messaging options include publish/subscribe, request/response, client-to-server communication, and fine-grained subscriptions. Connectors for Kafka, MQTT, and JMS, flexible deployment, and monitoring…
27.5
BrowserGap is an open-source, clientless remote browser isolation solution for automation, security, privacy, and CBII.
Free planWebAPILinux
37.5
Faye is a free, open-source publish-subscribe messaging system built on the Bayeux protocol.
Free planOpen sourceWebAPILinux
- 4
PubNub Chat
Free planAndroidiOSWebAPI7.5From $98 a month - 5
Scaledrone
Free planAndroidiOSWebAPI7.4From $19 a month - 6
Wren
Wren is a free, open-source, local-first reference manager for research on Apple Silicon Macs running macOS 14 or later.
Free planOpen sourceAPIExtensionmacOS7.1Free plan - 7
Mongoose Web Server
Free planAndroidiOSWebAPI6.9Free plan - 8
SocketCluster
SocketCluster is a server environment for building real-time applications over HTTP and WebSocket.
Free planAndroidiOSWebAPI6.8Free plan - 9
AnyCable
AndroidiOSWebLinux5.3 - 10
PieSocket
AndroidiOSWebLinux5.3 - 11
Primus
AndroidWebLinuxmacOS5.3 - 12
Pusher Channels
AndroidiOSWeb5.3 - 13
Ably Pub/Sub
AndroidiOSWeb5.2 - 14
Centrifuge
AndroidiOSWeb5.2 - 15
Reconnecting WebSocket
AndroidiOSWeb5.2 - 16
Apinator
iOSWebmacOS5.0 - 17
uWebSockets
LinuxmacOSWindows4.8 - 18
@fastify/websocket
LinuxmacOSWindows4.7 - 19
Autobahn|Python
LinuxmacOSWindows4.7 - 20
Channelstream
WebLinux4.7 - 21
fastwebsockets
LinuxmacOSWindows4.7 - 22
Gorilla WebSocket
LinuxmacOSWindows4.7 - 23
libwebsockets
LinuxmacOSWindows4.7 - 24
socketify.py
LinuxmacOSWindows4.7 - 25
Sockudo
WebLinux4.7 - 26
Tungstenite
LinuxmacOSWindows4.7 - 27
websocket-client
LinuxmacOSWindows4.7 - 28
websockets
LinuxmacOSWindows4.7 - 29
Action Cable
Web4.6 - 30
ApexStream
Web4.6