anATLyzer – Static analysis of ATL transformations to uncover errors
Combination of static analysis and constraint solving to improve the quality of model transformations. Implemented as an extension of the standard ATL IDE.
UMLetino – A free online UML tool for fast UML diagrams
Draw diagrams online with this install-free browser UML tool aimed at quickly drawing UML sketches (even mixing elements from different UML "diagrams" )