ArgoUML

At a glance

• Editor score
  7.1 / 10
• Pricing
  Free plan
• Best for
  Free cross-platform legacy UML modeling
• Free plan
  Yes
• Paid from
  Free
• UML diagram types
  class, statechart, activity, use case, collaboration, deployment, sequence
• Facts checked
  22 Sep 2026

• Where it wins

  • Supports seven UML 1.4 diagram types and UML profiles
  • Includes OCL checking, XMI interchange, and diagram export
  • Offers Java code generation and reverse engineering across three platforms

• Where it doesn't

  • Centers on the older UML 1.4 specification
  • Requires a compatible Java runtime for desktop use
  • Does not provide AI features or hosted web deployment

Our verdict on ArgoUML

ArgoUML is an open-source desktop application for creating, editing, reviewing, and exchanging UML models. It suits developers, analysts, and technical teams that need free cross-platform modeling on Windows, macOS, or Linux through a compatible Java runtime. Its coverage includes class, statechart, activity, use case, collaboration, deployment, and sequence diagrams, along with UML profiles and standard UML metamodel support. The tool is designed for model-driven work rather than lightweight diagram sketching alone.

Its engineering features give it more depth than a diagram-only application. ArgoUML supports XMI model import, export, and interchange; OCL constraint modeling with syntax and type checking; forward engineering and source-code generation; and reverse engineering from Java source, class, and JAR files. Design critics, checklists, to-do lists, multiple explorer perspectives, and overlapping diagram views add review and organization features for larger modeling tasks. Diagram output can be exported to GIF, PNG, PostScript, EPS, PGML, and SVG.

The main trade-off is its legacy focus. The product centers on UML 1.4 and is distributed as desktop software rather than a hosted web application, so it fits teams that value a local Java-based workflow and established modeling capabilities over newer cloud collaboration patterns. It is also not positioned around AI-assisted modeling. Choose ArgoUML when free access, source-code engineering, OCL checking, XMI, and broad platform support matter most. Consider another tool when the priority is a newer UML focus, browser-based collaboration, or AI features.

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ArgoUML pricing

ArgoUML fact sheet

Alternatives to ArgoUML

• IBM Engineering RhapsodyA broad engineering suite for teams connecting models, code, requirements, and verification.9.3
• Sparx Enterprise ArchitectA broad enterprise modeling suite with deep repositories, engineering and versioning features.8.9
• IBM Rational Software Architect DesignerA broad enterprise modeling platform for teams that need traceability and transformation workflows.8.9

See all ArgoUML alternatives →

Featured on iTechGuides

ArgoUML is listed in our UML Modeling Software directory. Add the badge to your site — it links back to this page.

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Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

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Last updated 7 Oct 2026 · How we research and update