Altova UModel vs BOUML
Altova UModel
altova.comBOUML
bouml.frSide by side
| Figure | Altova UModel | BOUML |
|---|---|---|
| Price from | — | Free |
| Free plan | — | Yes |
| Free trial | Yes | — |
| Open source | — | — |
| Windows | Yes | Yes |
| macOS | — | Yes |
| Linux | — | Yes |
| Plans published | 3 | 1 |
| Spec score · UML Modeling Software | 8.2 (#4) | 7.9 (#11) |
| Code generation | UModel generates Java, C++, C#, or Visual Basic .NET code and supports round trip synchronization between models and code. | Built-in plug-outs include generators for C++, C, Java, PHP, Python, IDL, and MySQL. |
| Interchange | UModel imports and exports UML projects in XMI format for model exchange with other UML tools. | Plug-outs provide XMI 1.2 and 2.1 generation, XMI 2.1 import, and Rational Rose model import. |
| Purpose | UModel is a visual UML software modeling tool that can generate source code and project documentation or reverse engineer existing programs into UML diagrams. | BOUML is a free UML 2 toolbox with a modeler for specifying systems and generating code. |
Plans
Altova UModel
- UModel 2026 Basic Edition$209, paid once
- UModel 2026 Professional Edition$349, paid once
- UModel 2026 Enterprise Edition$429, paid once
In their own words
Altova UModel
Altova UModel has no write-up on Specifiction yet; its figures are above.
BOUML
BOUML is a free UML 2 toolbox for modeling systems and generating code, available as desktop software for Linux, macOS, and Windows. It supports use case, sequence, communication, class, composite class, activity, state, object, composite object, component, and deployment diagrams. Built-in generators cover C++, C, Java, PHP, Python, IDL, and MySQL; reverse-engineering tools are listed for C++, Java, PHP, and MySQL, and round-trip tools for C++, Java, and PHP. Plug-outs provide XMI 1.2 and 2.1 generation, XMI 2.1 import, and Rational Rose model import. External plug-outs can be written in C++ or Java and run separately from BOUML. An HTML documentation generator can output diagrams as PNG or SVG. Project control and synchronization tools support work by several people. The maker says it can handle several thousand classes while using little memory. Version 7.11 is identified as the final release, with patch 4 listed for some distributions. Releases since version 7.0 are free to use; the maker states they come without warranty.