You should check out Stacker: https://stackerhq.com
Your data is hosted in an Airtable or Google Sheet that you control, not in a SQL database, though I'd say this is actually a huge advantage for your goal of a no-code CRUD web app that non-developers can work with easily. It is paid.
Disclosure: I work at Stacker, and we're a YC company. Email in my profile if you have any questions.