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CKEditor 5 real-time collaborative editing sample for Angular

This repository presents an integration of CKEditor 5 WYSIWYG editor including real-time collaboration features and Angular.

The integration supports Angular from version 5.0.0. The package.json file stores the higher version just to ensure that all dependencies are in compatible versions.

Quick start

  1. Clone the repository:

    git clone
    cd ckeditor5-collaboration-samples/real-time-collaboration-for-angular
  2. Execute npm run start and open http://localhost:8080 in your browser.

  3. Fill the dialog with correct token, websocket and upload URL endpoints. If you do not have these yet or do not know their meaning, contact us.

  4. Copy the URL and share it or paste in another tab to enjoy real-time collaborative editing.


The sample consist of an Angular application using CKEditor 5 with real-time collaborative editing. The application includes the editor with the users presence list together with real-time collaborative comments and track changes using a sidebar and a responsive display mode integration which reacts to the screen width.

It does not require the build step. However, if you want to modify the build, for instance to add more plugins, refer to the creating own build section below.

File structure

The application consist of two parts - the Angular app (the / directory) and CKEditor 5 source code (inside the vendor/ckeditor5/ directory). These separation of environments is required because we do not support building CKEditor 5 sources inside the Angular environment yet.

- dist/ # Built Angular application.
- src/
	- app/ # The core of the Angular application.
- vendor/
	- ckeditor5/ 
		- src/ # Classic Editor with Real-time collaboration source.
		- build # Classic Editor with Real-time collaboration build.
		- webpack.config.js # Webpack configuration file to build CKEditor 5 sources.

The Angular part was supposed to be really simple, thus we removed test files and other files that are not necessary to run the application (for overall file structure including missing files see Angular file structure guide).

The EditorComponent inside the src/app/editor/editor-component.ts uses the <ckeditor> Angular component, which is a wrapper for the Angular interface provided by the @ckeditor/ckeditor5-angular package.

To learn more about the integration and the @ckeditor/ckeditor5-angular package check out the Angular integration guide.

Creating your own build

Installing dependencies

If you want to customize the app, first, install all necessary dependencies in both parts of the project. To do it run the following commands from the main directory (real-time-collaboration-for-angular/):

npm install
cd vendor/ckeditor5
npm install
cd ../..

Modifying CKEditor 5 editor

The CKEditor 5 build created for the purpose of this example is based on classic editor, but you can use any other available CKEditor 5 editor as a base. To change the editor base go to the vendor/ckeditor5/src/classic-editor-with-real-time-collaboration.js and change the BaseEditor class. Note that this step will require changing dependencies inside the vendor/ckeditor5/package.json and installing them.

If you want to add plugin, then see the CKEditor 5 Installing plugins guide to learn more.

The webpack configuration for the building process is taken from vendor/ckeditor5/webpack.config.js. If you are familiar with webpack, you can play with this file to achieve a custom build that would fit your needs. You can check the CKEditor 5 Advanced setup guide for some ready-to-use advanced configurations.

Building application

To build the angular application make sure that real-time-collaboration-for-angular/ is your current directory and run:

npm run build

This will build the editor to the vendor/ckeditor5/build/ directory and then it will build the whole Angular application to the dist/ directory. Then start a local HTTP server using npm run start and test it.

Note that without touching the vendor/ckeditor5 files once you'll make the first build you can use the npm run serve command that will run Angular dev server which will provide much faster rebuild times.

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