Open Seabird is a project by Chris Ritter, a current Master's student in the Joint Executive Systems Engineering Management program. It enables its users to free-draw swim lane activity diagrams and then if the diagram is valid, it automatically generates the corresponding MP text code or SysML2 code.  MP code may then be run in MP-Firebird or MP-Gryphon to generate traces.  Likewise, SysML2 code may be run in supporting SysML2 tools to visualize the code as a SysML activity diagram. 

Open Seabird is available at https://openseabird.com