Warewolf ESB turns the complication of integration into a simple, seamless process that is deployable across multiple systems in record time. The easiest service bus available, Warewolf ESB is 100% open source and fast-becoming the developer’s choice. With over 40 tool connectors, including drag-and-drop tooling, a rapid prototyping platform, visual IDE and secure messaging, Warewolf ESB is purposefully easy to learn and simple to use so that it can be deployed by anyone, into any system, anywhere, anytime… and it’s free.
Download compiled version for free at: http://warewolf.io
Or get the source code from: https://github.com/Warewolf-ESB/Warewolf-ESB/