Creating a UI for CRUD (Create, Read, Update, Delete) operations in ASP.NET Core projects is a tedious and time-consuming process.
With EasyData library (https://github.com/KorzhCom/EasyData) it takes less than 5 minutes. The library uses a declarative approach, so all you need is to define a DbContext and possibly to "decorate" some of the model classes with special annotations. The UI is rendered automatically right at run-time. Paging, validation, and search are also available out of the box.

Very useful for quick prototyping of any database-related ASP.NET Core project.

Oh, totally forgot to mention, it's free and open-source!