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SockJS

SockJS is a browser JavaScript library that provides a WebSocket-like object.

Some of the top features or benefits of SockJS are: Cross-browser Compatibility, Fallback Options, Reliability, Ease of Use, and Server Support. You can visit the info page to learn more.

We have listed more than 10 alternatives to SockJS. You can find them below. The top competitors are: Socket.io, SocketCluster, and UbSub. Apart from the top ones, people also compare SockJS with iZooto, Faye, and deepstream.io.
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SockJS

Best SockJS Alternatives & Competitors in 2025

The best SockJS alternatives based on verified products, community votes, reviews and other factors.
Filter: 12 Open-Source Alternatives. Latest update:

  1. 16

    Socket.io

    ↔ SockJS

    Realtime application framework (Node.JS server)

    Open Source

    /socket-io-alternatives
  2. 11

    SocketCluster

    ↔ SockJS

    An open, scalable realtime engine for Node.js

    Open Source

    /socketcluster-alternatives
  3. Featured

    ✓ Flagsmith

    ↔ SockJS

    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

    Try for free
  4. 9

    UbSub

    ↔ SockJS

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

    /ubsub-alternatives
  5. 9

    Faye

    ↔ SockJS

    Simple pub/sub messaging for the web

    Open Source

    /faye-alternatives
  6. 9

    Primus

    ↔ SockJS

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

    Open Source

    /primus-alternatives
  7. 7

    SignalR

    ↔ SockJS

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

    /signalr-alternatives
  8. 8

    Pusher

    ↔ SockJS

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

    Open Source

    /pusher-alternatives
  9. 5

    Firebase

    ↔ SockJS

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

    /firebase-alternatives
  10. 3

    uWebSockets

    ↔ SockJS

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

    /uwebsockets-alternatives
  11. 3

    PubNub

    ↔ SockJS

    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.

    /pubnub-alternatives
  12. 2

    deepstream.io

    ↔ SockJS

    A scalable server for realtime webapps

    /deepstream-io-alternatives
  13. 1

    JsSIP

    ↔ SockJS

    JsSIP, the JavaScript SIP (Session Initiation Protocol ) library

    /jssip-alternatives
  14. 3

    Autobahn

    ↔ SockJS

    The Autobahn project provides open-source implementations of the The WebSocket Protocol and The Web...

    Open Source

    /autobahn-alternatives
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Flagsmith
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. featured
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