JBoss

JBoss is Red Hats Java EE 5-compliant (soon Java EE 6-compliant) application server. It is, as with Red Hat itself, dual-licensed either as open source (community edition) or commercially (enterprise edition).

Free Open Source Mac OS X Windows Linux

Lightstreamer

Lightstreamer is a server for delivering real-time messages to browser-based and mobile applications, using WebSockets and HTTP.

Commercial Mac OS X Windows Linux Android iPhone Android Tablet Blackberry Windows RT

Jetty

The Jetty Web Server provides a HTTP server and Servlet container capable of serving static and dynamic contend either from a standalone or embedded instantiations.

Free Open Source Mac OS X Windows Linux

Jet

Jet. Lightweight Realtime Message Bus for the Web. Build Realtime Apps now! Jet is a framework for building distributed realtime Apps. It employs fast push...

Free Open Source Mac OS X Windows Linux Android Web

Pusher

Pusher is a hosted API for quickly, easily and securely adding scalable realtime functionality to web and mobile apps.

Commercial Mac OS X Windows Linux Android Web

Socket.io

Socket.IO aims to make real-time apps possible in every browser and mobile device, blurring the differences between the different transport mechanisms. It's...

Free Open Source Mac OS X Windows Linux Web JavaScript

simperium

Simperium is a service for developers to move data everywhere it's needed, instantly and automatically. Use a Simperium library and write a few lines of code....

Freemium Mac OS X Windows

WebSocket-Node

A WebSocket Implementation for Node.JS ( Draft -08 through the final RFC 6455 ) Source code : https://github.com/theturtle32/WebSocket-Node

Free Open Source Windows Linux Mac JavaScript Node.JS

Faye

Faye is a set of tools for simple publish-subscribe messaging between web clients. It ships with easy-to-use message routing servers for Node.js and Rack applications...

Free Open Source Mac OS X Windows Linux JavaScript Node.JS

Notifyr

Notifyr's cloud push notification service is the easiest way to get started with realtime apps

Free Web

Primus

Primus, the creator god of the transformers & an abstraction layer for real-time to prevent module lock-in.

Free Open Source Mac OS X Windows Linux JavaScript Node.JS

eventlet

Eventlet is a concurrent networking library for Python that allows you to change how you run your code, not how you write it.

Free Open Source Windows Linux Mac Python

greenlet

greenlet - Lightweight in-process concurrent programming The “greenlet” package is a spin-off of Stackless, a version of CPython that supports micro-threads called...

Free Open Source Windows Linux Mac Python C++

gevent

gevent is a coroutine -based Python networking library that uses greenlet to provide a high-level synchronous API on top of the libev event loop.

Free Open Source Mac OS X Windows Linux Python greenlet

Ipê

An open source Pusher server implementation compatible with Pusher client libraries written in GO.

Free Open Source Mac OS X Windows Linux BSD

Atmosphere Framework

atmosphere - Realtime Client Server Framework for the JVM, supporting WebSockets and Cross-Browser Fallbacks Support

Free Open Source Linux

SocketCluster

SocketCluster is an open source realtime WebSocket framework for Node.js. SC supports both direct client-server communication (like Socket.io) and group communication...

Free Open Source Mac OS X Windows Linux JavaScript Node.JS

SockJS

SockJS is a browser JavaScript library that provides a WebSocket-like object. SockJS gives you a coherent, cross-browser, Js API which creates a low latency, full...

Free Open Source Mac OS X Windows Linux JavaScript Node.JS

Mako Server

The Mako Server is an application server with an API that loosely resembles the Java Servlet API, but where server side web applications are designed in the Lua...

Free Personal Mac OS X Windows Linux