It looks like the “The University of Maryland Institute for Advanced Computer Studies (UMIACS)” is not a thing anymore (they probably just moved things a little and it might still be hosted somewhere internally).
You can see that the tool was there at some point but not anymore. And since you’re looking for a hosted service, the archive link will not be very helpful. I also unfortunately did not found any kind of public repo for the source code so I guess that your ways to move forward from now one are: