AppMySite - An automated no-code app builder
JavaScript.com - A free resource for learning and developing in JavaScript
AppYourself App maker - App maker designed by AppYourself is a popular app builder platform that gives you the opportunity to create feature-rich Android, iOS, and PWAs apps in minutes.
A.I. Experiments by Google - Explore machine learning by playing w/ pics, music, and more
AppyBuilder - An App Inventor 2 spin-off. Formerly called AILiveComplete.
BundlePhobia - Find the performance impact of adding a npm package to your bundle.