OpenXava - OpenXava is a Web Java Framework for Rapid Development of Enterprise Applications.
Microsoft Office Access - Access is now much more than a way to create desktop databases. It’s an easy-to-use tool for quickly creating browser-based database applications.
Microsoft PowerApps - Microsoft PowerApps provides tools to create, customize, share and run apps.
MongoDB - MongoDB (from "humongous") is a scalable, high-performance NoSQL database.
Python - Python is a clear and powerful object-oriented programming language, comparable to Perl, Ruby, Scheme, or Java.
LibreOffice - Base - Base, database, database frontend, LibreOffice, ODF, Open Standards, SQL, ODBC