JamMT, or "just another mode matching tool," is a tool for calculating the mode matching solution for a desired output mode given a set of lenses. The original download link on the University of Birmingham website has gone dead, so I thought I would make it available here. Those with LIGO credentials can find the source code. I did not contribute to JamMt in any way. I just want to make it available for others to use since I have found it so helpful.