Free software downloads
The red buttons above take you to some freeware & open source software that I've written.
Please note that in some cases these programs were written for fun or one-off uses, or as an excuse to learn a new programming language, and so I haven't invested much time into tidying up the code. They come without warranty and are used at your own risk. Hope you find them useful!
I've also made various UNIX utilities for postgresql and for GIS that you can download from github.