Chatsy is a chat application that allows you to chat securely and easily with your friends, family, and whatever else you'd like! It's available cross-platform and on the web. It's also completely open-source!
Boosty is a simpler alternative to Chatsy, which is easier to work with and use! It features a terminal-like interface, and is available cross-platform as well, like Chatsy. It's also available on the web too and is open-source!
Minequack is a Minecraft clone, which is made in NodeJS! It's super simple to modify and use. It isn't anything that's meant to go commercial, just a fun little project!