Looking for a good UML diagramming software (in browser or desktop) which is free or heavily discounted for students.
It needs to be able to support at least; Use Case, Class, Object, Interaction and Deployment Diagrams. Also, be able to export to pdf and popular image formats. Efficient and easy to use would be great too.
I have tried out draw.io and AgroUML and I want to know if there is anything better out there which meets my requirements.