DotDotGoose is a free, open source tool to assist with manually counting objects in images. DotDotGoose was purpose-built since most conservation researchers and practitioners working on counting objects in images were using software such as Adobe Photoshop and ImageJ which are not ideally suited for many conservation applications.

The DotDotGoose interface makes it easy to create and edit classes of objects to be counted and you can pan and zoom to accurately place points to identify individual objects. Information about objects can be stored in custom fields and this metadata can be exported for use in spreadsheet or statistics software.

Point data collected with DotDotGoose will be very valuable training and validation data for any future efforts with computer assisted counting.

Contact Us

If you have any questions or are interested in this project please contact Ned Horning (Director of Applied Biodiversity Informatics, Center for Biodiversity and Conservation ) and Peter Ersts (Software Developer, Center for Biodiversity and Conservation) .

Bugs and Feature Requests

If you find a bug or have a great idea for a new feature that will make DotDotGoose better, please submit them to the GitHub repository ( so the whole community can see and comment! If you can't submit bugs/feature requests on GitHub use the contact button above.




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User Guide

Source Code


If you use this application on data that results in a publication, report, or online analysis, we ask that you include the following reference:

Ersts,P.J.[Internet] DotDotGoose (version 1.2.0). American Museum of Natural History, Center for Biodiversity and Conservation. Available from Accessed on .

DotDotGoose In Action

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