is a gathering place for users and developers of algorithm visualizations and animations (AVs). It is a gateway to AV-related services, collections, and resources. 

New AlgoViz Server

 We are now hosting AlgoViz on a new VM on our physical server, with an updated operating system, etc. This let us fix some bugs that had temporarily knocked out the AV catalog. We apologize for the interruption! Hopefully everything is running smoothly now. If you see any problems with the site, please contact us.


OpenDSA Project Receives NSF Funding

 Our sister project, OpenDSA, has recently received two NSF grants. OpenDSA seeks to to develop a complete online interactive textbook for data structures and algorithms (DSA) courses. Eventually, this will include:

  • Hundreds of instructional modules, where each module is the equivalent to one topic, such as one sorting algorithm, corresponding to a couple of pages in a standard textbook. Each module is of textbook quality.
  • Every algorithm or data structure illustrated by an interactive algorithm visualization.
  • Every module containing multiple interactive assessment activities that give students immediate feedback on their proficiency with the material. This means many hundreds of exercises.

Our current funding includes the following grants:

  • TUES program grant DUE-1139861 supports the collaboration of Virginia Tech, University of Wisconsin-Oshkosh, and Rice University to develop the prototype system and initial content.
  • EAGER program grant IIS-1258571 supports the collaboration of University of Wisconsin-Madison, Auburn University, and Virginia Tech to work with Aalto University, Finland.

For more information about OpenDSA, see

For more information about our recent NSF grants, see

AlgoViz at SIGCSE 2012 Part 2

We recently returned from SIGCSE 2012 in Raleigh, NC where the weather was beautiful and the conference was great! Thank you to all who stopped by the booth to talk about our projects. Most people seemed to be familiar with the site and had used it to look for AVs at some time, a good sign of success. We were able to spread the word about our new OpenDSA project as well.

Thanks also to Boots Cassell of the Ensemble Project, who we shared booth expenses with.

And thanks to Zalia Shams for this photo of members of the AlgoViz and Ensemble teams at our booth!

eTextbook Resources from SIGCSE 2012 BOF Session

I have posted a list of links and resources that came up during discussion at the Birds-of-a-Feather session held on March 2, 2012 at SIGCSE 2012 in Raleigh, NC. I will improve on this as I get more information and ideas.


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