Tynker - Game Worlds for Kids to Learn Programming
Sandpack by CodeSandbox - Sandpack is a toolkit for building live coding experiences that run fully in the browser.
CodeCombat - Learn programming with a multiplayer live coding strategy game.
LucidDreamBot - The easiest way to achieve lucid dreaming
StackHive - Design, develop or publish websites right from your browser
Falling Water by IBM Watson - AI-powered dream interpreter