Download

Union is entirely free for both commercial and noncommercial applications with up to 1000 simultaneous clients.

Deployments with more than 1000 simultaneous client connections require a commercial licence.

For JavaScript/HTML5/Web Programmers

• Download Orbiter (Client Framework for JavaScript) Orbiter is Union's full-featured JavaScript framework for creating connected applications and realtime content. For testing and experimentation, connect to the free tryunion.com server on port 80.

• Download OrbiterMicro (Client Framework for JavaScript)
  OrbiterMicro is the lightweight configuration of Orbiter, perfect for mobile devices and bandwidth-limited environments. For testing and experimentation, connect to the free tryunion.com server on port 80.

For ActionScript/Flash Programmers

• Download Reactor (Client Framework for Adobe® Flash®)
  Reactor is a framework for creating Union applications with ActionScript 3.0. For testing and experimentation, connect to the free tryunion.com server on port 80. Requires Flash CS4 or higher, or other ActionScript 3.0 compiler, such as Flex Builder 3+, Flash Builder 4+, FDT, or Flash Develop.

• ReactorGUI (Flex 3.0 Component LIbrary)
  ReactorGUI is a a library of common collaborative interface components for Adobe® Flex®, such as user lists, room lobbies, a chat panel, and avatars.

For Server Administrators and Server-side Programmers

• Download Union Server
  Free 1000 User Licence. View licensing details.
  Union Server manages all communications between connected clients. Download Union Server to host your own Union applications, and to create server-side application logic in Java, JavaScript, Python, or other scripting languages.

• Download Union Admin
  Union Admin is an administration tool for managing Union Server. Use Union Admin to view and manage connected clients, rooms, user accounts, banned addresses, gateways, statistics, and the server log.