Tools for creating Class Diagrams

Question

Please suggest tools for creating Class Diagrams with the following criteria:

• It should be platform-independent because I use Linux and the file is expected to be edited by other members of the team using Windows/Mac
• Free, because there no such free tool, we should create one
• It would also be nice if you can include a screenshot of the class diagram produced, just to make sure that the tool is actually used for creating Class Diagrams and not just any other types of diagrams

Also, please only suggest the tools that you've actually used.

UPDATE: Please DO NOT include those UML Diagram tools that cannot create Class Diagrams.

Solution 1

I use GenMyModel, first released in 2013. It's a real UML modeler, not a drawing tool. Your diagrams are UML-compliant, generate code and can be exported as UML/XMI files. It's web-based and free so it matches your criteria.

Solution 2

I used Poseidon UML Community Edition, it's platform independent and makes fine and clean diagrams. There are some screenshots here.

Solution 3

A nice online tool: yUML

Solution 4

Some time ago I used DIA - free and platform-independent. It was ok. Now I use Enterprise Architect but it's not free.

Solution 5

I always use Gliffy works perfectly and does lots of things including class diagrams.

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