engine.io VS SockJS

Compare engine.io vs SockJS and see what are their differences.

engine.io

The engine used in the Socket.IO JavaScript server, which manages the low-level transports such as HTTP long-polling and WebSocket. (by socketio)
WebSocket NodeJS Real-time JavaScript
Source Code
socket.io
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SockJS

WebSocket emulation - Node.js server (by sockjs)
Real-time Sockjs JavaScript NodeJS Node WebSocket
Source Code
sockjs.org
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engine.io SockJS
3 2
4,586 2,087
0.3% 0.1%
6.2 3.9
29 days ago 6 months ago
JavaScript JavaScript
MIT License MIT License
The number of mentions indicates the total number of mentions that we've tracked plus the number of user suggested alternatives.
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.

engine.io

Posts with mentions or reviews of engine.io. We have used some of these posts to build our list of alternatives and similar projects. The last one was on 2021-10-28.

SockJS

Posts with mentions or reviews of SockJS. We have used some of these posts to build our list of alternatives and similar projects. The last one was on 2023-12-18.
  • WebSockets and Node.js - testing WS and SockJS by building a web app
    3 projects | dev.to | 18 Dec 2023
    SockJS is a library that mimics the native WebSockets API. Additionally, it will fall back to HTTP whenever a WebSocket fails to connect, or if the browser being used doesn’t support WebSockets. Like WS, SockJS requires a server counterpart; its maintainers provide both a JavaScript client library and a Node.js server library.
  • Top WebSocket libraries for Node.js in 2022
    12 projects | dev.to | 7 Jan 2022
    SockJS is a JavaScript library that provides communication between the client and the server in a way similar to the native WebSockets API. SockJS functions with a server counterpart in the form of sockjs-node and SockJS-client, a JavaScript client library.

What are some alternatives?

When comparing engine.io and SockJS you can also consider the following projects:

sec-api - sec.gov EDGAR API | search & filter SEC filings | over 150 form types supported | 10-Q, 10-K, 8, 4, 13, S-11, ... | insider trading

Socket.io - Realtime application framework (Node.JS server)

Aedes - Barebone MQTT broker that can run on any stream server, the node way

SocketCluster - Highly scalable realtime pub/sub and RPC framework

socket.io-client - Realtime application framework (client)

Primus - :zap: Primus, the creator god of the transformers & an abstraction layer for real-time to prevent module lock-in.

deepstream.io - deepstream.io server

morpheus-graphql - Haskell GraphQL Api, Client and Tools

Faye - Simple pub/sub messaging for the web

Straw - Realtime processing framework for Node.js

engine.io vs sec-api SockJS vs Socket.io engine.io vs Aedes SockJS vs SocketCluster engine.io vs socket.io-client SockJS vs Primus engine.io vs Primus SockJS vs deepstream.io engine.io vs morpheus-graphql SockJS vs Faye engine.io vs SocketCluster SockJS vs Straw