Keep track of the last time you did something.

A combination of a tally counter with a clock, so you can count the frequency of occurrences of events.

Document your extended family, set up random gift exchanges, and see how you’re all related to one another.

Stumpy is a dummy SMTP and POP3 server. It does the bare minimum to let you work with email sending and receiving without having to risk actually sending email to actual people.

Connect matching tiles using no more than three lines.

This is a simple application to convert between decimal degrees (e.g. 27.125°) and degrees-minutes-seconds (e.g. 31° 8’ 15”).

This is a very simple unit converter between Fahrenheit and Celsius (and Kelvin). No typing required, just slide the control back and forth to adjust the temperature.