Sketch.systems helps software designers think about complex product behavior. Sketch out states, add prototypes, and clarify questions quickly.
Cost / License
- Free
- Proprietary
Platforms
- Online

Telerik RadDiagram for WinForms, WPF, ASP.Net is described as 'RadDiagram offers flexible and interactive diagramming layouts for your rich data-visualization applications. The framework tool set enables you to:' and is a UML Modeling tool in the development category. There are more than 25 alternatives to Telerik RadDiagram for WinForms, WPF, ASP.Net for a variety of platforms, including Windows, Linux, Mac, Web-based and Android apps. The best Telerik RadDiagram for WinForms, WPF, ASP.Net alternative is draw.io, which is free. Other great apps like Telerik RadDiagram for WinForms, WPF, ASP.Net are Dia, Lucidchart, Wondershare EdrawMax and Umbrello.
Sketch.systems helps software designers think about complex product behavior. Sketch out states, add prototypes, and clarify questions quickly.

Simple vector graphics editor for creating flowcharts, UML class diagrams, illustrations and slide shows.

Lightweight, powerful, easy to use, UML tool
Software Ideas Modeler is a lightweight and powerful CASE tool. It supports UML 2.2 diagrams and a lot of other ones. Software Ideas Modeler is freeware (for non-commercial use). Commercial user may use this software only after buying.





WhiteStarUML is a fork of StarUML with an intent to revive its Delphi code base by updating code to recent Delphi editions, reducing dependence on third party components and fixing bugs and adding new features.




VSD Viewer opens Visio drawings directly on a computer without conversion on external Web Servers. Viewing Visio documents is as simple as dragging and dropping off files (with a .vsd, .vsdx, .vdx extension) to the Application window.




With YAKINDU Statechart Tools, you can easily create complex systems in a visual way. Simulate and test your system’s behavior already while you are modeling.

UMLGraph allows the declarative specification and drawing of UML class and sequence diagrams. The current features are part of an ongoing effort aiming to provide support for all types UML diagrams.

TopCoder UML Tool is an easy to use, consistent modeling tool for use in Design and Development competitions. The new tool was built to model sequence, class, use case, and activity diagrams. On top of that, all those elements can have documentation easily attached to them.




IYOPRO, Improve your Processes, is a professional online BPM and workflow system that utilizes the BPMN 2.0 standard.

Use simple text to quickly create and share diagrams with your team. Improve your documentation, planning and everyday communication with powerful tools for automatic diagram generation.

ClassBuilder is freeware CASE tool targeted at the C++ developer, running on Win2K-XP. It lets you create, manipulate and navigate classes, class relations, class members and class methods at a high level of abstraction through a graphical user interface.

