Most simple,
Light-weight,
Free UML modeling tool





Compare Editions


astah community

$0/mo

  • - UML2.x
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astah professional

$9.99/mo

  • - UML2.x/Mindmap
  • - ER Diagram/Flowchart
  • - Data Flow Diagram
  • - Font Setting
  • - Business Actor/UseCases
  • - Auto-create Class Diagrams
  • - Code generation of other languages
  • - Merge project files
  • - Copy and Paste .asta files
  • - Team Developing
  • - XMI Import/Export...more
  • ▶ Learn More