Graphity is a diagram editor that can be used to quickly and effectively generate drawings and to apply automatic layouts to a range of different diagrams and networks.

ProcessOn is described as 'Free online drawing tool that supports the creation of mind maps, flow charts, swimlane diagrams, network topology diagrams, fishbone diagrams, UML and other graphics' and is a Mind Mapping tool in the office & productivity category. There are more than 50 alternatives to ProcessOn for a variety of platforms, including Windows, Web-based, Mac, Linux and iPhone apps. The best ProcessOn alternative is draw.io, which is free. Other great apps like ProcessOn are Pencil Project, yEd Graph Editor, Xmind and Dia.
Graphity is a diagram editor that can be used to quickly and effectively generate drawings and to apply automatic layouts to a range of different diagrams and networks.

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.


Enter your lists here. Use either the "text area" or "file upload" to assign your list to the diagram. Files should be delimiter ASCII files (Any white space like space, tab, or line break, and comma).

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.




WriteMaps is a web application that allows you to create, edit, and share your sitemaps online.
BOUML is a free UML 2 tool box (under development) allowing you to specify and generate code in C++, Java, Idl, Php and Python.

MockupTiger is a web based application that helps you to build fluid wireframes, mockups or prototypes for your next web application or desktop software.

the Chronos Web Modeller is a collaborative tool for the creation of UML models with reporting, code and document generator .
A lightweight HTML5/javascript library for UML 2 diagramming.
Alpha software. This project is in progress. Many functionalities are ready to be used. Nevertheless, some features and developments will not be neccessarily available for download.