UModel is a UML (Unified Modeling Language) software modeling tool from Altova, the creator of XMLSpy. UModel supports all 14 UML 2 diagram types and adds a unique diagram for modeling XML Schemas in UML.

Modeliosoft is described as 'Whether you are a Business Architect, System Architect, Developer, Analyst or Designer, Modeliosoft meets your needs through its high quality solutions for modeling, and report, architecture or code generation' and is a UML Modeling tool in the development category. There are more than 25 alternatives to Modeliosoft for a variety of platforms, including Windows, Linux, Mac, Web-based and Chrome OS apps. The best Modeliosoft alternative is PlantUML, which is both free and Open Source. Other great apps like Modeliosoft are Visual Paradigm, StarUML, Enterprise Architect and Modelio.
UModel is a UML (Unified Modeling Language) software modeling tool from Altova, the creator of XMLSpy. UModel supports all 14 UML 2 diagram types and adds a unique diagram for modeling XML Schemas in UML.

ckwnc is a uml sequence diagram creation tool that uses an intuitive c-style language to automatically create uml diagrams that can be saved as an image or embedded directly into other pages
RadDiagram offers flexible and interactive diagramming layouts for your rich data-visualization applications. The framework tool set enables you to:






Essential is an enterprise architecture modelling tool geared to supporting EAs and CXOs in their decision making. The platform had both an open source and a low-cost commercial version.




The Essential Project is the most popular Self-Hosted alternative to Modeliosoft.