Behavioral UML
Use Case Diagram Maker
Show who uses the system and which goals they pursue. Start from the template, keep use cases at goal level, and export for requirements workshops.
Features
- Live editor for use case diagram maker
- Starter template included on the page
- PNG and SVG export
- No install required
Need a blank canvas? Open the full UML studio.
What you can model
Use case diagrams capture actors, goals, and the system boundary. They support scope talks and requirements workshops without drowning readers in click-by-click steps.
How to use this maker
List actors, place goals inside the system boundary, connect associations, add includes or extends only when they clarify reuse, preview, then export.
Notation that matters
Actors sit outside the boundary. Use cases are goals inside it. Associations link actors to goals. Includes and extends show reuse relationships. Keep wording at goal level, not UI clicks.
Keep the diagram readable
Do not turn every requirement into an oval. Put detailed steps in text scenarios or an activity diagram. Use a sequence diagram when interaction order is the next question after scope is clear.
Frequently asked questions
Is this use case diagram maker free?
Yes. Create and export online without a paid plan.
Should every requirement become a use case oval?
No. Keep ovals at user goals. Split details into scenarios outside the diagram.
Use case diagram or activity diagram?
Use cases show who and what goals. Activity diagrams show how a procedure runs step by step.
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Browse the full UML diagram tools directory or return to the UML diagram hub.