Didge is a freeware digitizing program, designed to help the user quickly mark and record coordinates on a series of images. It was developed for the study of animal locomotion, but if people find other uses for it, so much the better.

Key features of Didge:

What Didge cannot do:

More information can be obtained by browsing the Help Files.


The latest stable version of Didge is 2.3. It is still branded as "beta" because I've been too lazy to recompile it.


This version of Didge includes a number of enhancements and bug fixes. For complete information, see the version history.

Important - If you have a version of Didge prior to 2.2.0, Didge must be reinstalled rather then the executable simply copied over. (Unfortunately, Microsoft's install program does not include an easy "update" method.) Please follow these steps:

You should find that all your previous settings are preserved despite the uninstall!

Contact Information, Pricing & Bug Reports

Comments and bug reports on Didge are welcome, preferably by email:

Alistair Cullum
Department of Biology
Creighton University
2500 California Plaza
Omaha, NE 68178-0103

Didge is freeware, but is copyrighted by the author. You may not distribute copies of Didge in any form for which a fee is charged. If you end up using Didge, please send me an email, and I'll try to keep you informed of updates, bugs, etc.

If you are sending a bug report, please include as much of the following information as possible:

Version History

Last modified: November 09, 2016