Welcome to WorldTree Software

This is the home of JM Gustafson's independent software development portfolio. I'm primarily interested in building HTML5 web applications but you will find some desktop applications here as well. Please contact me with any questions, comments or suggestions.

This web site uses a lot of HTML5 features. If you are using an older browser this site may not look that good. For the best experience I suggest you use Chrome or Firefox. IE9 also supports most of the HTML5 features.

If you can't find something click the Site Map link for a list of all the pages on this site.

Featured Items

Virtual Harmonograph

Use Virtual Harmonograph to create beautiful harmono-graphs right in your browser or on your desktop.

Blackjack

Make your bets and see how you do against the house.

Kalah

Kalah, also known as Mancala, is an ancient African game of strategy. Play against a friend or the computer.

Math Tutor

Math tutor is designed to help students practice their math skills. Like flash cards, only better.