Jet Admin - Build business apps really fast
MissionKontrol - A self-hosted admin panel and interface that allows you to manage your apps' data.
Retool - Build custom internal tools in minutes.
Draxlr - Get answers from your data without writing SQL queries, and share with your team and users.
CodeQuest - Mini-games that intro kids to HTML and web development
Blur Admin - Angular admin panel front-end framework