Zillion
Make sense of it all

Zillion is a free, open data warehousing and dimensional modeling tool that allows combining and analyzing data from multiple datasources through a simple API. It writes SQL so you don't have to.

Source Documentation
Zillion Web UI
Demo UI and Web API

Zillion Web is a monorepo Vue frontend UI and Python backend API with a main objective of demonstrating and testing some use cases for Zillion. It provides a powerful user interface for data analysis.

Source