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written by Douglas Brown, Wolfgang Christian, and Robert Hanson
The JavaScript implementation of the Tracker Video Analysis and Modeling Tool is now available for beta testing.  This online program runs within a web browser that supports HTML5 + JavaScript.    It allows users to drag and drop Tracker Experiment files or video clips onto the web page to analyze the motion of objects in videos. By overlaying simple dynamical models directly onto videos, students may see how well a model matches the real world. Interference patterns and spectra can also be analyzed.

The original Tracker Java program was written by Doug Brown at Cabrillo College using portions of the the Open Source Physics code library developed by Wolfgang Christian at Davidson College. Tracker was later converted from Java to JavaScript by Doug Brown, Wolfgang Christian and Robert Hanson using the SwingJS system developed by Hanson and his students at St. Olaf College.

Additional Tracker resources, including Tracker help and sample videos, are available from the Tracker website.
Subjects Levels Resource Types
Education Practices
- Curriculum Development
= Laboratory
- Instructional Material Design
- Technology
= Computers
= Multimedia
General Physics
- General
- Measurement/Units
- Lower Undergraduate
- High School
- Upper Undergraduate
- Instructional Material
= Activity
= Interactive Simulation
= Laboratory
- Tool
= Software
- Audio/Visual
= Movie/Animation
Material Category Lab Software Type Ratings
- Software Exchange
- Computer Code
- Simulation
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Intended Users:
Access Rights:
Free access
This material is released under a GNU General Public License Version 3 license.
Rights Holder:
Douglas Brown
force, interference, kinematics, mechanics, modeling, motion, oscillation, osp, spectra, spectroscopy, video analysis
Record Cloner:
Metadata instance created October 12, 2020 by Wolfgang Christian
Record Updated:
April 20, 2023 by Wolfgang Christian
Last Update
when Cataloged:
October 12, 2020
Other Collections:

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Record Link
AIP Format
D. Brown, W. Christian, and R. Hanson, Computer Program TRACKER VIDEO ANALYSIS AND MODELING JS, Version 5.9 (2020), WWW Document, (
D. Brown, W. Christian, and R. Hanson, Computer Program TRACKER VIDEO ANALYSIS AND MODELING JS, Version 5.9 (2020), <>.
APA Format
Brown, D., Christian, W., & Hanson, R. (2020). Tracker Video Analysis and Modeling JS (Version 5.9) [Computer software]. Retrieved September 26, 2023, from
Chicago Format
Brown, D, W. Christian, and R. Hanson. "Tracker Video Analysis and Modeling JS." Version 5.9. (accessed 26 September 2023).
MLA Format
Brown, Douglas, Wolfgang Christian, and Robert Hanson. Tracker Video Analysis and Modeling JS. Vers. 5.9. Computer software. 2020. 26 Sep. 2023 <>.
BibTeX Export Format
@misc{ Author = "Douglas Brown and Wolfgang Christian and Robert Hanson", Title = {Tracker Video Analysis and Modeling JS}, Month = {October}, Year = {2020} }
Refer Export Format

%A Douglas Brown %A Wolfgang Christian %A Robert Hanson %T Tracker Video Analysis and Modeling JS %D October 12, 2020 %U %O 5.9 %O text/html

EndNote Export Format

%0 Computer Program %A Brown, Douglas %A Christian, Wolfgang %A Hanson, Robert %D October 12, 2020 %T Tracker Video Analysis and Modeling JS %7 5.9 %8 October 12, 2020 %U

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