NocoDB

NocoDB connects to a database you already run and generates a spreadsheet-style interface on top, grid, gallery, kanban, and form views, along with an auto-generated REST API for every table. Because it works with your existing schema rather than importing data into a new format, it fits naturally into a stack that already has a production database behind other applications.

Self-hosting is free and open source, and the hosted cloud version prices by workspace and row count for teams that skip running their own instance. Since NocoDB is a layer over your own database rather than a closed data silo, there’s effectively no lock-in on the data itself, only on the views and automations built inside NocoDB. The ceiling is polish and breadth of automation compared to Airtable, fewer native integrations and a smaller ecosystem of templates and community extensions. It fits engineering teams that want a fast admin-style interface on a production database without giving up ownership of that data.