Sequence Diagram Maker
Describe an interaction — "UPI payment between user, app and bank" — and get a sequence diagram with lifelines, messages, activation bars and loop or alt boxes.
- Participants, people (stick figures) and databases
- Sync, async and return messages
- Activation bars drawn automatically
- loop / alt / opt / par / break boxes
- Reveal message by message in presentation mode
How it works
- Describe the interaction
- The AI drafts lifelines and messages
- Edit, reorder and wrap messages in boxes
- Export or present it
Try it with
- Google OAuth sign-in
- UPI payment between user, app and bank
- Password reset by email
- Booking a train ticket
Frequently asked questions
Is it free?
Yes. Drawing by hand is always free and every account includes free AI credits. AI Flowchart Pro adds unlimited AI generation and every diagram type.
Can I export it?
Yes — PNG, SVG, PDF, PowerPoint with an editable slide, Mermaid code and draw.io. You can also share a live link or present it full screen.