Primus VS SockJS

Compare Primus vs SockJS and see what are their differences.


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


WebSocket emulation - Node.js server (by sockjs)
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Primus SockJS
2 0
4,301 1,979
0.4% 0.8%
5.8 1.6
4 months ago 4 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.


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


Posts with mentions or reviews of SockJS. We have used some of these posts to build our list of alternatives and similar projects.

We haven't tracked posts mentioning SockJS yet.
Tracking mentions began in Dec 2020.

What are some alternatives?

When comparing Primus and SockJS you can also consider the following projects: - Realtime application framework (Node.JS server)

SocketCluster - Highly scalable realtime framework - server

Kalm - Moved to

Faye - Simple pub/sub messaging for the web

Straw - Realtime processing framework for Node.js

deployd - a toolkit for building realtime APIs

rivalis-core - Rivalis, framework for building real-time application servers