This package implements the core editor architecture — a set of classes and interfaces which glue everything together.
Together with the {@link api/engine editing engine} and the {@link api/ui standard UI library} they create a platform for implementing rich text editors.
See the introduction to the {@link framework/guides/architecture/core-editor-architecture core editor architecture}.
You can also browse the API documentation of this package by using the module tree on the left.
npm install --save @ckeditor/ckeditor5-core
The source code of this package is available on GitHub in https://github.com/ckeditor/ckeditor5/tree/master/packages/ckeditor5-core.