I want to create a process modeller @ BPMN 2.0, how this can help

I want to create a process modeller @ BPMN 2.0, how this can help

Also i want to expose it as a eclipse plugin as well as web

Do we have some available , open source , ready to use modeller for BPMN2.0 .xml generation

Did you checkout our website as well as the bpmn-js toolkit page in an attempt to answer the questions yourself?