Figma - Team-based interface design, Figma lets you collaborate on designs in real time.
Commandline Challenge - Test your command line skills
Adobe XD - Adobe XD is an all-in-one UX/UI solution for designing websites, mobile apps and more.
Prompt - Prompt provides fully-integrated writing education solutions, combining instruction, curriculum, and feedback. We support educational institutions, companies, and individuals.
UXpin - Design is really about solving problems. UXPin is the UX Design Platform that gets that right.
Cwiki - A Command line interface for searching Wikipedia!