AgileUML

At a glance

• Editor score
  7.2 / 10
• Pricing
  Free plan
• Best for
  Open-source code-generating modelers
• Free plan
  Yes
• Paid from
  Free
• UML diagram types
  class diagrams; use cases; state machines; activities; interaction diagrams; SysML requirements models
• Facts checked
  22 Sep 2026

• Where it wins

  • Generates code for Java, C++, C, C#, Python, and Swift
  • Combines UML, OCL, analysis, refactoring, and reverse engineering
  • Synthesizes Android and iOS apps and generates test harnesses

• Where it doesn't

  • Desktop deployment is less suited to browser-first modeling workflows
  • The Java executable distribution adds a runtime-oriented setup step
  • Its broad engineering scope may exceed the needs of diagram-only teams

Our verdict on AgileUML

AgileUML is an open-source model-driven engineering toolset for software practitioners and organizations that want UML specifications connected to implementation. It supports graphical or textual class diagrams, use cases, state machines, activities, interaction notation, and SysML requirements models. Behavior can be expressed with pseudocode and OCL, while source-code generation covers Java, C++, C, C#, Python, and Swift. The toolset also supports Android and iOS application synthesis, making it a fit for teams treating models as active engineering artifacts rather than presentation diagrams.

Its strongest distinction is breadth across the model lifecycle. AgileUML can analyze and refactor specifications, abstract source code into UML/OCL models, and support transformations using QVT-R, ATL, and ETL. That combination gives teams options for forward engineering, reverse engineering, testing, and model transformation within one toolset. Test-case and test-harness generation further connect specification work with verification. Teams selecting AgileUML should be comfortable with a model-driven process and with managing several forms of notation and generated output.

AgileUML is distributed as a Java executable for desktop deployment and is available under the Eclipse EPL-2.0 license. Its free, open-source distribution suits organizations seeking a tool they can download and use without a paid plan structure. The desktop orientation is less aligned with teams expecting browser-based collaboration, and the breadth of features may be unnecessary for users who only need lightweight diagramming. Choose AgileUML for open-source modeling tied to code, mobile synthesis, tests, and transformations; choose a narrower diagramming tool when those engineering workflows are not priorities.

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AgileUML pricing

AgileUML fact sheet

Alternatives to AgileUML

• 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 AgileUML alternatives →

Featured on iTechGuides

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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