Free Mac UML Software

Ralph Garcia suggested Visual Paradigm Online to be the best free Mac UML software. Because it’s web-based, it works in different platforms, including Mac and, it’s free:

• Create unlimited number of diagrams
• Create unlimited number of shapes
• No ad
• No watermark
• No limited accessing period

According to Ralph, VP Online Express Edition is an online drawing tool that support UML, ERD, Organization Chart, Floor Plan, Business Concept Map, ITL etc. It’s simple, intuitive and easy to use. Here are several key features of VP Online:

• Easy to use: Create and connect shapes with drag and drop. Connectors are always attached to shapes - Never separate apart! (unlike many other tools).
• Beautiful drawing: Apply different formatting options (shape and lines, solid and gradient paint), 40+ connector types, RTF caption, font options, shadow effect, etc
• Alignment guide helps you position shapes nicely.
• Build your own shape library to create diagrams with your own shapes.
• Start quickly with the pre-developed diagram templates. Hundreds of templates are provided.
• Easily add text, notes, external images, web links to diagram
• Easily print and export into different formats (PNG, JPG, SVG, GIF, PDF)
• Available on the cloud, compatible with all O/S and browsers
• Visio drawing and stencil import
• Google drive integration

Ralph added that VP Online also off paid editions with more diagram types support.