Otter is a member management web application I built for an honors fraternity I belonged to during my time at Penn State University, named after our chapter's official mascot. It stores information on membership status, rush class information, and big/little brother family trees.
Previously, this information was stored in a set of Microsoft Excel spreadsheets, but I was able to dump the data into this application by converting the spreadsheets to CSVs, then applying a custom parser to load it into Rail's SQL database.