Diagramo is an online flowchart software. It's FREE and Open Source ( GPL ) It's pure HTML5 Share and collaborate. Developed by Diagramo
License: Open Source
Diagramo is ideal for creating detailed diagrams with a strong emphasis on collaboration, while Mockingbird focuses on wireframing and prototyping with an intuitive interface. Both tools serve different purposes, making them suitable for different use cases in design and development.