Sequence
Sequence diagram generator — from text to UML sequence
Explain who talks to whom and in what order, and ChartCraft draws the UML sequence diagram — lifelines, messages, and returns — perfect for APIs, auth flows, and protocols.
Prose in. Diagram out.
You type
The user logs in via the web app, which requests a token from the auth service. The auth service validates credentials against the database and returns a JWT to the app.
ChartCraft draws
How it works
Describe it
Write what you want in plain English — no syntax to learn.
ChartCraft compiles
It parses your description, builds the structure, and runs an automatic layout.
Refine & export
Tweak with follow-up messages, then export clean SVG or PNG.
Why ChartCraft
Lifelines & messages
Actors and systems become lifelines; calls and responses become time-ordered messages.
Great for APIs
Model request/response flows, auth handshakes, and protocols the way engineers actually read them.
Time-ordered layout
Messages are placed top-to-bottom in order, so the sequence is unambiguous.
Questions
How do I make a sequence diagram from text?
Describe the interaction in order — who sends what to whom. ChartCraft produces a UML sequence diagram with lifelines and messages.
Is it UML-compliant?
Yes — actors, lifelines, synchronous messages, and returns follow UML sequence conventions.
Can I export it?
Yes, export to SVG or PNG with no watermark on any plan.