muhlinkz, or short for "the most useless web application? Save your URLs in a database via a web interface. Truly nothing can do this already, right?". Fully equiped with theming so you can use it (or stare at it politely) in colours! Live at https://muhlinkz.000webhostapp.com/
Securimage - A PHP class for creating captcha images and audio with many options. https://github.com/dapphp/securimage version 3.6.7