@ngrx/entity is a library that provides a set of tools for managing collections of entities in Angular applications using the NgRx store. It simplifies the process of handling CRUD operations and managing state for collections of data, allowing developers to focus on building their applications rather than dealing with boilerplate code. With features like entity adapters, selectors, and utility functions, @ngrx/entity makes it easier to manage and manipulate collections of entities efficiently.

One notable alternative to @ngrx/entity is @ngrx/data. This library builds on top of @ngrx/entity and provides a higher-level abstraction for managing data in Angular applications. It simplifies the process of working with entities by providing a set of conventions and utilities for data management, including automatic entity management, data services, and simplified HTTP interactions. If you are looking for a more opinionated and feature-rich solution for managing data in your Angular application, @ngrx/data is a great choice.

To see how @ngrx/entity compares with @ngrx/data, check out the comparison: Comparing @ngrx/data vs @ngrx/entity.