Overview of Magento 2 WYSIWYG Editor
WYSIWYG editor in Magento 2 is a useful tool to edit content for CMS pages, CMS blocks, product descriptions & short descriptions, and category descriptions.

In the editor, you can see basic functions to create basic content such as text, images, links, widgets, and so on.
Above the editor, you can see Show / Hide Editor button. When clicking on this button, you’ll switch to HTML editor, like this:
Disable WYSIWYG Editor
To disable the WYSIWYG editor, please follow these steps:
– On the admin sidebar, go to Store > Settings > Configuration.

– In the panel on the left, under General, click Content Management.

– In the WYSIWYG Options section, there is Enable WYSIWYG Editor drop-down. As you can see, the editor is Enabled by Default. Untick the checkbox Use the system value to choose another option from the drop-down list:

- Disabled by Default: the editor is disabled by default, so on page load, you will see the HTML editor. You can click Show / Hide Editor to switch to WYSIWYG editor.
- Disabled Completely: disable the WYSIWYG editor completely so that you can’t use it to edit content, like this:

Don’t forget to Save Config after you finish.
NOTE: In case you see no changes, you should clear the cache by:
- Go to System > Tools> Cache Management.