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The Collaborative Annotation Tool (CATool)


The Collaborative Annotation Tool, commonly shortened to CATool, is an academic application that gives faculty and students the ability to collaboratively annotate video clips. Students and faculty highlight points of interest and discussions with text or media annotations. Other users may create additional annotations, or reply to previous annotations, thus creating discussions around common points of interests.

This is an Open-Source version of an application that was tightly coupled with a proprietary LMS. This software should be considered experimental.

ATG Information

This product was developed by the Academic Technology Department (ATG) of Harvard University.


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Developed By:

Arthur Barret
JaZahn Celevenger
Jeff Martini