DGM

DGM is an online tool for creating sketchnotes, diagrams, and technical schematics built for professional workflows. It’s designed for UML, ER diagrams, flowcharts, and UI wireframes, making it a practical fit for developers, analysts, and designers.

Diagram libraries and smart shapes

DGM lets you build diagrams from ready-made element libraries, including common notations and templates.

• UML, ERD, Flowchart, and UI prototyping libraries
• “Smart” shapes that understand connections and context to reduce manual edits
• Faster assembly of complex structures using consistent components

Collaboration and local use

The editor supports real-time co-editing, so teams can review and iterate together during calls, architecture reviews, and planning sessions.

• Live collaboration with changes visible immediately
• A “free forever” mode for working with local files, useful for personal and small projects

Vision AI and diagram-to-code

DGM also includes an experimental AI assistant based on GPT-4 Vision. It can interpret diagram structure and help generate code from a visual model.

• Diagram recognition to extract structure
• Draft code generation based on an existing diagram