Here are some projects I’ve worked on:

Java Apps

Encrypter GUI.

Private repo on GitHub. JavaFX app that encrypts and decrypts strings of text using a simple substitution cipher and AES encryption and saves the keys to a cloud database.

Browser Extension


A simple countdown timer for Chrome. It replaces the new tab page with a countdown timer and a list of your most visited sites. It’s useful for keeping track of deadlines and it allows unlimited timers, a feature that was missing from other countdown timers I tried.

Web Apps


Site for students at Otago University to trade textbooks and save money on buying new books. Has been running since 2010 and has listed thousands of books.


Rails 7 app for tracking skills and repetitions. See the project description page for more information


Inside Hokkaido Podcast

Japanese Signs, Explained