Kottster is an instant admin panel for your app. It's self-hosted, built with Node.js and allows you to generate pages and dashboards on top of your database.
Saltcorn is a platform for building database web applications without writing a single line of code. Use the intuitive point-and-click, drag-and-drop user interface to build the whole application.
Free and open source โ MIT license.
timestrap - Time tracking and invoicing you can host anywhere. Full export support in multiple formats and easily extensible.