These are some programs that I've developed in my spare time. I write them partially because I need the programs, partially to polish my programming skills, but mostly because it's fun and rewarding. Since I'm not in the software business, I'm making these programs free for anyone to use, distribute and modify. I hope you find them useful, too.

TreeLine

TreeLine is a structured information storage program. Do you have lots of sticky notes lying around with various useful information jotted down? Or many lists of books, movies, website logins, personal contacts, or things to do? Can you find them when you need them? Well, I often couldn't. So here's my answer. Read more...

TreeTag

TreeTag is a personal data manager. It stores information in a hierarchy (the "Tree" part of the name). But unlike other tree-based applications, TreeTag automatically positions items in the tree based on field values (the Tag" part of the name). Read more...

ConvertAll

ConvertAll is a unit conversion program. With it, you can combine various units any way you want. If you want to convert from inches per decade, that's fine. Or from meter-pounds. Or from cubic nautical miles. The units don't have to make sense to anyone else. Read more...

rpCalc

rpCalc is a simple reverse polish notation calculator. I like RPN, so I find myself using this very frequently. Read more...