Gaphor

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About

Gaphor is ranked #9 of 24 in UML modeling software on Inferse. It runs on Linux, macOS, Windows. There is a free plan.

Compared on UML modeling software

Free plan: Yesgaphor.org
UML diagram types: Class, Component, Action, Sequence, Interaction, State Machine, Use Case, Deployment, Information Flowgaphor.org
Code generation: Yesgaphor.org
Team collaboration: Yesgaphor.org
Deployment: desktopgaphor.org
Supported platforms: Windows, macOS, Linuxgaphor.org
Model repository: Yesgaphor.org

Facts

Purpose: Gaphor is a modeling application for UML, SysML, RAAML, and C4 used to visualize and document applications and systems.gaphor.org · 29 Sept 2026
Modeling standards: Gaphor implements a fully compliant UML 2 data model and the UML, SysML, and RAAML OMG standards, and supports the C4 model.gaphor.org · 29 Sept 2026
Diagram types: It supports diagrams including Class, Interaction, State Machine, Block Definition, and Requirements diagrams, and lets users mix diagram items.gaphor.org · 29 Sept 2026
Model styling: Users can customize diagrams with a built-in styling engine.gaphor.org · 29 Sept 2026
Extensibility: Gaphor can be extended with plugins and users can access their own extensions through the GUI or CLI.gaphor.org · 29 Sept 2026
Export: Gaphor exports diagrams as SVG, PNG, PDF, or EPS and can batch-export every diagram in a model.docs.gaphor.org · 29 Sept 2026
HTML reports: It can generate a self-contained, static, interactive, read-only HTML report of a model that requires no server or backend to view.docs.gaphor.org · 29 Sept 2026
Scripting: Gaphor can be used as a Python library with scripts or Jupyter notebooks to inspect, generate, or update models.docs.gaphor.org · 29 Sept 2026
Documentation integration: Gaphor provides a Sphinx extension for embedding its diagrams in reStructuredText or Markdown documentation.docs.gaphor.org · 29 Sept 2026
Support: The project provides community contact through Matrix chat and accepts issue reports through GitHub.gaphor.org · 29 Sept 2026
Windows distribution: Windows users can download an installer or portable version, or install Gaphor with Winget.gaphor.org · 29 Sept 2026
macOS requirement: The download page says Gaphor requires macOS 10.15 or newer and provides ARM and Intel installers.gaphor.org · 29 Sept 2026
Linux distribution: The download page recommends Flatpak for Linux and also lists Arch and Debian/Ubuntu packages.gaphor.org · 29 Sept 2026