Gaphor

Gaphor

Gaphor is an open-source modeling tool for UML diagrams and SysML. It allows users to create diagrams like use case diagrams, class diagrams, state machines, activity diagrams and more. Gaphor aims to be easy to use with an intuitive user interface.
Gaphor image
uml modeling diagrams sysml

Gaphor: Open-Source UML Modeling Tool

Gaphor is an open-source modeling tool for UML diagrams and SysML, offering intuitive tools to create use case diagrams, class diagrams, state machines, activity diagrams, and more.

What is Gaphor?

Gaphor is an open-source modeling tool used to create UML and SysML diagrams. Some of the key features of Gaphor include:

  • Intuitive graphical user interface for easy diagramming
  • Support for all 14 types of UML diagrams like use case diagrams, class diagrams, sequence diagrams, state machines, activity diagrams etc.
  • Additional support for SysML diagrams
  • Diagram layout and auto-layout tools
  • Customizable appearance through themes and styles
  • Model validation to check for consistency errors
  • Import/export capabilities to exchange diagrams with other tools
  • Extensibility through Python-based plugins
  • Available on Linux, Mac OS X and Windows

Gaphor is designed to be simple and easy to use for beginner and professional software modelers alike. Its wide range of diagram types, layout tools and customizations make Gaphor applicable for use in fields like software development, systems engineering, business modeling and more. The open-source nature of Gaphor also allows developers to enhance its capabilities further through plugins.

Gaphor Features

Features

  1. UML 2.0 compliant
  2. SysML 1.4 compliant
  3. Create UML diagrams like use case, class, state machine, activity, etc
  4. Automatic layout of diagrams
  5. Syntax checking and validation
  6. Export diagrams as images
  7. Plugin architecture to extend functionality
  8. Multi-platform (Windows, Linux, macOS)

Pricing

  • Open Source

Pros

Free and open source

Intuitive and easy to use interface

Support for major UML and SysML diagrams

Active development and community support

Cons

Limited documentation

Less advanced features than some commercial tools

Lacks integration with code generation tools


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