Altova UModel vs JetUML
Altova UModel
altova.comJetUML
jetuml.orgSide by side
| Figure | Altova UModel | JetUML |
|---|---|---|
| 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) | 7.6 (#16) |
| 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. | JetUML is a desktop UML editor for quickly sketching software design ideas. |
| Support | Altova provides a technical support form and lists online training among its support resources. | The project invites users to send endorsements to [email protected] and to support it by starring its GitHub repository. |
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.
JetUML
JetUML is a free desktop editor for sketching software designs with UML. It supports class, sequence, state, object, and use case diagrams, keeping its feature set focused on core diagramming. Association edges are laid out automatically, and moving nodes changes their paths. A validity check reports diagram problems through temporary notifications. You can export diagrams as SVG, PNG, or JPEG images, or copy them to the system clipboard for use elsewhere. JetUML saves diagrams as JSON in a documented open format with a schema for each diagram type. It runs on Windows, macOS, and Linux. Distribution uses Java archives, including an operating-system-independent archive that requires Java and JavaFX; a community Nix package is available for macOS and Linux. The application is licensed under GNU GPL version 3 or later. JetUML states that it collects no information and accesses the network only to open Help-menu web pages. Larger diagrams can reduce performance.