NocoBase

NocoBase is an open-source no-code development platform that puts a relational database at its core. It gives you structured data with fields, relationships, and multiple view types (grid, gallery, form, map) without touching SQL. The platform is self-hosted and designed for teams who want to own their data and customize the interface.

It fits teams building internal tools, dashboards, and lightweight apps who prefer open-source infrastructure and don't need heavy JavaScript customization. Compared to Airtable, NocoBase offers more control over deployment and costs, though it requires running your own server.