PubNub vs uWebSockets: What are the differences?
What is PubNub? Build real-time apps quickly and scale them globally. 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.
What is uWebSockets? Simple, secure & standards compliant web I/O for the most demanding of applications. It is a simple to use yet thoroughly optimized implementation of HTTP and WebSockets. It comes with built-in pub/sub support, HTTP routing, TLS 1.3, IPv6, permessage-deflate and is battle tested as one of the most popular implementations, reaching many end-users daily.
PubNub and uWebSockets can be primarily classified as "Realtime Backend / API" tools.
Some of the features offered by PubNub are:
- Data Push - Establish and maintain persistent socket connections to any device (mobile, browser, desktop and server) and push data to global audiences in less than ¼ of a second
- Presence - Automatically detect when users enter or leave your app and whether machines are online
On the other hand, uWebSockets provides the following key features:
- HTTP and Websockets
- Built-in pub/sub support
- HTTP routing
uWebSockets is an open source tool with 10.9K GitHub stars and 1.07K GitHub forks. Here's a link to uWebSockets's open source repository on GitHub.