EventMachine based WebSocket server

Simple pub/sub messaging for the web

Universal Ruby library to handle WebSocket protocol

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

Rack-based WebSocket server

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

Ruby SDK for AnyCable, an open-source realtime server for reliable two-way communication

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

Private pub/sub messaging in Rails through Faye.

Universal Ruby library to handle WebSocket protocol

Socky is a WebSocket server and client for Ruby

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

Faye bindings for Rails