Structure many real-time application concerns into channels over a single WebSocket connection.

Universal Ruby library to handle WebSocket protocol

EventMachine based WebSocket server

AnyCable is a polyglot replacement for ActionCable-compatible servers

Private pub/sub messaging in Rails through Faye.

A fast HTTP / Websocket Server with built-in Pub/Sub support (with or without Redis), static file support and many other features, optimized for Ruby MRI on Linux / BSD / macOS / Windows

Simple pub/sub messaging for the web

Faye bindings for Rails

Fat-free ActionCable implementation for using with AnyCable (and without Rails)

Universal Ruby library to handle WebSocket protocol

Socky is a WebSocket server and client for Ruby

Rack-based WebSocket server

Private pub/sub messaging in Rails through Faye. More Faye features supported. Based on PrivatePub.