Office for Technology Commercialization

Web Based Video Annotation Tool

Technology #z08212

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David Ernst, Ph.D.
Dr. Ernst’s research focuses on e-Learning and technology in K-12 and higher education. He was instrumental in the creation of the new Open Academics textbook catalog.
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Andrew Morrow
Technology Licensing Officer

Annotation Tool for YouTube Videos

VideoAnt is a tool which allows users to make annotations and tags along the timelines of web-based video sites such as YouTube and Vimeo. As educators are more frequently assigning their students the task of producing a video assignment, the tool is potentially valuable for the teacher to give feedback at specific points in the video; common uses include foreign and sign languages courses and graded presentations. Other uses include social networking, documentation of video content, performance review, sign language applications, media website user comments and content editing tools for publishers.

Video Annotation

The VideoANT tool is extremely user friendly, requiring little training to use. The video annotation tool is web based, so does not require the video to be uploaded into the user’s system. As the tool is XML based, the annotations can be repurposed with little development work and are easy to build upon.


  • Make annotations directly on YouTube videos, so you do not have to upload the video.
  • The annotated video can be shared with students and colleagues as a means of feedback.
  • The interface is extremely user friendly.
  • For more information, visit the Videoant website.