WProofreader plugin for CKEditor 5
The multilingual spelling and grammar checking solution for CKEditor 5. It provides both instant and in dialog proofreading modes in a convenient UI.

Starting with version 3.1.0, the WProofreader plugin for CKEditor 5 offers basic TypeScript support. The package contains a type definition file (.d.ts), enabling integration and customization of the functionality using WProofreader options in TypeScript projects.
WProofreader plugin for CKEditor 5 inherits all functionality of the WProofreader component with slight adaptation to the view and features of the editor. For more details, visit the WProofreader repo or official web page.
Table of contents
Install instructions
-
Install the plugin.
You can integrate the plugin using one of these methods:
- Using npm: Recommended for projects utilizing a JavaScript bundler.
- Using CDN: Suitable for environments where no build process is involved.
Using npm
To install the plugin via npm, run the following command:
npm install @webspellchecker/wproofreader-ckeditor5
Import the WProofreader plugin into the project and configure it. Then, add it to the create()
method configuration and include it as a toolbar item.
import { ClassicEditor } from 'ckeditor5';
import { WProofreader } from '@webspellchecker/wproofreader-ckeditor5';
...
ClassicEditor
.create( editorElement, {
plugins: [ ..., WProofreader ],
toolbar: [ ..., 'wproofreader' ],
wproofreader: {
}
} )
Using CDN
To load the script, utilize the browser's import map feature. This allows you to map a simple specifier to the full CDN URL, making it easier to reference the necessary files.
<script type="importmap">
{
"imports": {
"ckeditor5": "https://cdn.ckeditor.com/ckeditor5/43.0.0/ckeditor5.js",
"@webspellchecker/wproofreader-ckeditor5": "https://cdn.jsdelivr.net/npm/@webspellchecker/wproofreader-ckeditor5@3.1.1/dist/browser/index.js"
}
}
</script>
In the following script tag, import the WProofreader plugin, add it to the plugins
array, and include it as a toolbar item.
<script type="module">
import { ClassicEditor } from 'ckeditor5';
import { WProofreader } from '@webspellchecker/wproofreader-ckeditor5';
ClassicEditor
.create( editorElement, {
plugins: [ ..., WProofreader ],
toolbar: [ ..., 'wproofreader' ],
wproofreader: {
}
} )
</script>
-
Configure the plugin
After installing the plugin, you need to configure it in the CKEditor 5 setup. The configuration is added to the wproofreader
field. For a detailed list of available customization options, refer to the documentation.
For the Cloud-based version of WProofreader:
wproofreader: {
lang: 'en_US',
serviceId: 'your-service-ID',
srcUrl: 'https://svc.webspellchecker.net/spellcheck31/wscbundle/wscbundle.js'
}
serviceId
is a mandatory parameter for activating and using the plugin pointed to the Cloud-based version of WProofreader.
For the Server-based version of WProofreader:
wproofreader: {
lang: 'en_US',
serviceProtocol: 'https',
serviceHost: 'localhost',
servicePort: '443',
servicePath: 'virtual_directory/api',
srcUrl: 'https://host_name/virtual_directory/wscbundle/wscbundle.js'
}
Unlike the Cloud-based version, the serviceId
parameter is not used here. Instead, it is required to specify the path to the backend entry point hosted on the client’s infrastructure.
Documentation
To find out more, refer the following documentation:
Reporting issues
We use GitHub Issues as the official public bug tracker for WProofreader plugin for CKEditor 5. Here are some recommendations to take into account when reporting an issue:
- Provide steps which help us to reproduce an issue. A sample page or JSFiddle is always welcomed.
- Some issues may be browser and integration-specific. So, please specify what browser and integration you encountered the issue.
Technical support or questions
Holders of an active subscription to the services or a commercial license have access to professional technical assistance directly from the support team. Contact us here.
License
Licensed under the terms of MIT license. For full details about the license, please check the LICENSE.md
file.
4.0.0 - 2025-07-09
Provide support of CKEditor 5 v46.0.0.