SockJS Alternatives

Realtime application framework (Node.JS server)

Open Source

Pusher is a hosted API for quickly, easily and securely adding scalable realtime functionality via WebSockets to web and mobile apps.

Open Source

Flagsmith lets you manage feature flags and remote config across web, mobile and server side applications. Deliver true Continuous Integration. Get builds out faster. Control who has access to new features. We're Open Source.

Try for free Open Source freemium

SignalR is a server-side software system designed for writing scalable Internet applications, notably web servers.

Quickly and easily distribute your events between services. See a log stream and debug events before they even get to your services.

An open, scalable realtime engine for Node.js

Open Source

Primus, the creator god of the transformers & an abstraction layer for real-time to prevent...

Open Source

Simple pub/sub messaging for the web

Open Source

Simple, secure & standards compliant web I/O for the most demanding of applications - uNetworking/uWebSockets

WebRTC is a free, open project that enables web browsers with Real-Time Communications (RTC) capabilities via simple JavaScript APIs. The WebRTC components have been optimized to best serve this purpose.

Open Source

Firebase is a cloud service designed to power real-time, collaborative applications for mobile and web.

JsSIP, the JavaScript SIP (Session Initiation Protocol ) library

PubNub is a real-time messaging system for web and mobile apps that can handle API for all platforms and push messages to any device anywhere in the world in a fraction of a second without having to worry about proxies, firewalls or mobile drop-offs.

Simple screen sharing and audio conferencing software.