--- category: api-reference --- # CKEditor 5 UI framework [![npm version](https://badge.fury.io/js/%40ckeditor%2Fckeditor5-ui.svg)](https://www.npmjs.com/package/@ckeditor/ckeditor5-ui) This package implements a simple UI framework and CKEditor 5's standard UI library. Together with the {@link api/engine editing engine} and the {@link api/core core editor architecture} they create a platform for implementing rich text editors. ## Documentation See the introduction to the {@link framework/guides/architecture/ui-library UI library's architecture}. You can also browse the API documentation of this package by using the module tree on the left. ## Installation ```bash npm install --save @ckeditor/ckeditor5-ui ``` ## Contribute The source code of this package is available on GitHub in https://github.com/ckeditor/ckeditor5/tree/master/packages/ckeditor5-ui. ## External links * [`@ckeditor/ckeditor5-ui` on npm](https://www.npmjs.com/package/@ckeditor/ckeditor5-ui) * [`ckeditor/ckeditor5-ui` on GitHub](https://github.com/ckeditor/ckeditor5/tree/master/packages/ckeditor5-ui) * [Issue tracker](https://github.com/ckeditor/ckeditor5/issues) * [Changelog](https://github.com/ckeditor/ckeditor5/blob/master/CHANGELOG.md)