Runway for Mac

Runway — UML diagramming for macOS

Runway is a complimentary macOS application built to make creating and maintaining UML (Unified Modeling Language) diagrams straightforward. Its clean, approachable interface helps users model systems quickly, whether they need simple sketches or more detailed architecture drawings.

Main capabilities

• Support for multiple UML diagram types, including class, sequence, and use-case diagrams
• A drag-and-drop editor with adaptable diagram components and editable templates
• Exporting diagrams to common formats for sharing and embedding in documents
• Tools suited for both beginners and seasoned designers to speed up the modeling process
• Real-time collaborative editing so teams can work on the same diagrams together

Teamwork and file sharing

Runway enables simultaneous editing, allowing several contributors to work on a project at once and see updates live. When diagrams are finished, the app provides a variety of export choices to save work as images or vector files for easy integration into reports, presentations, or development documentation.

Ideal users

This tool is particularly useful for:

• Software developers mapping system structure and interactions
• System architects documenting design decisions
• Students and educators learning or teaching UML concepts

Recommended free alternative

If you’re looking for another free option, consider iMazing Converter Free — a no-cost alternative that can handle certain diagram export and conversion tasks, useful when you need quick format changes or lighter-weight conversion features.