AI Sequence Diagram Maker

What to include in your description

Name the participants and describe the messages in order. Include the triggering action, success response, important failure conditions and any asynchronous work. Keep the scenario bounded.

A practical starting point

For checkout, describe how the customer interface requests an order, which service validates it, how payment is requested and what confirmation returns. Include only services your project actually has.

Make a diagram in four steps

1. Connect and validate your own Gemini API key.
2. Enter a project title and abstract, then optionally add a public GitHub repository.
3. Add relevant details, choose your diagram types and review the project.
4. Check the generated blueprint and assumptions, refine the diagram and download.

What to check before you export

• Reuse participant names from your architecture view.
• Put messages in chronological order.
• Distinguish requests from returns and asynchronous messages.
• Limit branches to the conditions needed to explain the scenario.

Choose the view that answers your question

A flowchart shows decision logic and steps. A sequence diagram emphasizes which participant sends each message and when. Use an activity diagram when the handoff of work matters more than individual messages.

Diagrams use a monochrome palette by default. SVG stays vector; PNG exports at 1×, 2× or 3×. Use Download All for a ZIP containing your selected formats and project summary.

Common questions