Alternatives to Socket.io for all platforms with any license

  • 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...

    Free Open Source Mac Windows Linux

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  • Bone.io

    Bone.io is a lightweight framework for building high performance Realtime Single Page JavaScript applications.

    Free Open Source Mac Windows Linux JavaScript Node.JS

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  • 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 Mac Windows Linux Python

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  • 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 Windows Linux Python greenlet

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  • 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 Mac Windows Linux Python C++

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  • Lightstreamer

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

    Commercial Mac Windows Linux Android iPhone ... Blackberry Windows RT Android Tablet Windows Phone iPad Self-Hosted Blackberry 10

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  • 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 Windows Linux JavaScript Node.JS

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  • 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 Windows Linux Web Android ... iPhone

  • 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 Windows

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  • Nchan

    Nchan is a scalable, configurable pub/sub server for the modern web, built as a module for the Nginx web server. Dead simple REST API, super flexible configuration.

    Free Open Source Linux Redis NGINX

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  • Primus

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

    Free Open Source Mac Windows Linux JavaScript Node.JS

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  • 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 Windows Linux

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