StackShareStackShare
Follow on
StackShare

Discover and share technology stacks from companies around the world.

Follow on

© 2025 StackShare. All rights reserved.

Product

  • Stacks
  • Tools
  • Feed

Company

  • About
  • Contact

Legal

  • Privacy Policy
  • Terms of Service
  1. Stackups
  2. Application & Data
  3. Platform as a Service
  4. Realtime Backend API
  5. CometD vs SocketCluster

CometD vs SocketCluster

OverviewComparisonAlternatives

Overview

SocketCluster
SocketCluster
Stacks47
Followers168
Votes47
GitHub Stars6.2K
Forks322
CometD
CometD
Stacks22
Followers34
Votes0

SocketCluster vs CometD: What are the differences?

What is SocketCluster? An open, scalable realtime engine for Node.js. SocketCluster is a fast, highly scalable HTTP + realtime server engine which lets you build multi-process realtime servers that make use of all CPU cores on a machine/instance. It removes the limitations of having to run your Node.js server as a single thread and makes your backend resilient by automatically recovering from worker crashes and aggregating errors into a central log.

What is CometD? WebSocket & HTTP, highly scalable and clustered web messaging framework. It is a web server to push data to a browser, without the browser explicitly requesting it. It is an umbrella term, encompassing multiple techniques for achieving this interaction.

SocketCluster and CometD can be categorized as "Realtime Backend / API" tools.

Some of the features offered by SocketCluster are:

  • Resilient on both the client and backend - Process crashes, lost connections and other failures are handled seamlessly.
  • Scales linearly as you add more CPU cores and workers (assuming a decent OS) - Tested with up to 16 cores.
  • Also designed to scale horizontally across multiple machines. See sc-redis sample.

On the other hand, CometD provides the following key features:

  • Javascript Client
  • Publish/Subscribe Messaging
  • Service Channels

SocketCluster is an open source tool with 5.42K GitHub stars and 293 GitHub forks. Here's a link to SocketCluster's open source repository on GitHub.

Share your Stack

Help developers discover the tools you use. Get visibility for your team's tech choices and contribute to the community's knowledge.

View Docs
CLI (Node.js)
or
Manual

Detailed Comparison

SocketCluster
SocketCluster
CometD
CometD

SocketCluster is a fast, highly scalable HTTP + realtime server engine which lets you build multi-process realtime servers that make use of all CPU cores on a machine/instance. It removes the limitations of having to run your Node.js server as a single thread and makes your backend resilient by automatically recovering from worker crashes and aggregating errors into a central log.

It is a web server to push data to a browser, without the browser explicitly requesting it. It is an umbrella term, encompassing multiple techniques for achieving this interaction.

Resilient on both the client and backend - Process crashes, lost connections and other failures are handled seamlessly.;Scales linearly as you add more CPU cores and workers (assuming a decent OS) - Tested with up to 16 cores.;Also designed to scale horizontally across multiple machines. See sc-redis sample.
Javascript Client; Publish/Subscribe Messaging; Service Channels; Private Message Delivery; Lazy Messages; Message Batching; Listeners, Data Filters and Extensions; Security Policy
Statistics
GitHub Stars
6.2K
GitHub Stars
-
GitHub Forks
322
GitHub Forks
-
Stacks
47
Stacks
22
Followers
168
Followers
34
Votes
47
Votes
0
Pros & Cons
Pros
  • 12
    Cluster mode is awesome
  • 8
    WebSockets
  • 7
    Scalability
  • 4
    Security
  • 4
    JWT based Authentication
No community feedback yet
Integrations
Node.js
Node.js
JavaScript
JavaScript
Node.js
Node.js
AngularJS
AngularJS
Dojo
Dojo
jQuery
jQuery

What are some alternatives to SocketCluster, CometD?

NGINX

NGINX

nginx [engine x] is an HTTP and reverse proxy server, as well as a mail proxy server, written by Igor Sysoev. According to Netcraft nginx served or proxied 30.46% of the top million busiest sites in Jan 2018.

Firebase

Firebase

Firebase is a cloud service designed to power real-time, collaborative applications. Simply add the Firebase library to your application to gain access to a shared data structure; any changes you make to that data are automatically synchronized with the Firebase cloud and with other clients within milliseconds.

Apache HTTP Server

Apache HTTP Server

The Apache HTTP Server is a powerful and flexible HTTP/1.1 compliant web server. Originally designed as a replacement for the NCSA HTTP Server, it has grown to be the most popular web server on the Internet.

Socket.IO

Socket.IO

It enables real-time bidirectional event-based communication. It works on every platform, browser or device, focusing equally on reliability and speed.

Unicorn

Unicorn

Unicorn is an HTTP server for Rack applications designed to only serve fast clients on low-latency, high-bandwidth connections and take advantage of features in Unix/Unix-like kernels. Slow clients should only be served by placing a reverse proxy capable of fully buffering both the the request and response in between Unicorn and slow clients.

PubNub

PubNub

PubNub makes it easy for you to add real-time capabilities to your apps, without worrying about the infrastructure. Build apps that allow your users to engage in real-time across mobile, browser, desktop and server.

Microsoft IIS

Microsoft IIS

Internet Information Services (IIS) for Windows Server is a flexible, secure and manageable Web server for hosting anything on the Web. From media streaming to web applications, IIS's scalable and open architecture is ready to handle the most demanding tasks.

Pusher

Pusher

Pusher is the category leader in delightful APIs for app developers building communication and collaboration features.

Apache Tomcat

Apache Tomcat

Apache Tomcat powers numerous large-scale, mission-critical web applications across a diverse range of industries and organizations.

Passenger

Passenger

Phusion Passenger is a web server and application server, designed to be fast, robust and lightweight. It takes a lot of complexity out of deploying web apps, adds powerful enterprise-grade features that are useful in production, and makes administration much easier and less complex.

Related Comparisons

Bootstrap
Materialize

Bootstrap vs Materialize

Laravel
Django

Django vs Laravel vs Node.js

Bootstrap
Foundation

Bootstrap vs Foundation vs Material UI

Node.js
Spring Boot

Node.js vs Spring-Boot

Liquibase
Flyway

Flyway vs Liquibase