Tooyoo Emergency Sheet - Free & secure, emergency medical information sharing
DNScapy - DNScapy is a DNS tunneling tool. The code is very light and written in Python.
Have I Been Sold? - Check if your email address was sold without permission
Navisens - Indoor & outdoor location without beacons, WiFi, or GPS
Reggy - Signup forms filled automatically with random identities
Iodine - iodine is a free (ISC licensed) tunnel application to forward IPv4 traffic through DNS servers (IP over DNS). Works on Linux, FreeBSD, NetBSD, OpenBSD and Mac OS X.