AsciiDots
github | demo | motherboard | i-programmer
Dataflow esolang inspired by ascii art. Over 800 github stars.

MarbleComplete
github | demo
Design turing-complete marble runs with ascii/unicode art.

Jay
github
Encrypted command-line journaling application. Password required to read, not write.

Idea Bin
github | demo
Client-side encrypted idea tracker.

StickBugML
github
Use python decorators to manage data as it passes through the common components of a ML system.