DiagramAI

Turn your ideas into clear, professional architecture diagrams in seconds.

Whether you are an engineer planning a new system, a team lead explaining a complex infrastructure, or a consultant documenting a client's platform, this tool gives you the power to model software architectures with precision and speed.

Write your architecture as structured code and see it come to life as an interactive, fully rendered diagram — no manual positioning, no drag-and-drop frustration.

Key capabilities:

- Live preview that updates as you type, so your diagram always reflects your latest thinking.
- Built-in AI assistant that generates architecture code from plain text descriptions. Describe what you want and copy the result directly into your diagram.
- Intuitive toolbar with quick-insert actions for actors, systems, containers, components, relations, tags, and styles.
- Fullscreen presentation mode, designed for sharing your diagrams on-screen with colleagues or stakeholders.
- Export your diagrams in multiple formats, including SVG, HTML, and Markdown.
- Backup and restore all your work at any time.
- Dark mode and light mode support.
- Example diagrams included to help you get started immediately.
- Available in English and Spanish.

Stop drawing boxes and arrows by hand. Start designing with clarity.