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This module integrates CKEditor 5 with Backdrop CMS, providing a modern rich
text editor. This module is being developed in contrib as a candidate to be
included in a future version of Backdrop core.

Intended to be a full replacement for the existing CKEditor module (which was
based on CKEditor 4), this module provides matching functionality, including:

  • Support for Backdrop link and image dialogs (in progress)
  • Uploading images through copy/paste.
  • Uploading files through the link dialog.
  • Drag and drop toolbar configuration.
  • Automatic configuration of text format HTML tags based on toolbar.

This module is not ready for use on production websites. It may strip tags
or otherwise corrupt content when editing existing content. This is not yet
any kind of upgrade path from CKEditor 4 to 5, other than reconfiguring an
editor to match the previous CKEditor 4 configuration.


Backdrop core. You can enable CKEditor 4 and 5 modules on the same site,
as long as they are configured on different text formats.

CKEditor 5 does not support Internet Explorer. An up-to-date browser is
required. See
CKEditor Browser Compatibility.


  • Install this module using the official Backdrop CMS instructions at

  • Visit the Text Editors and Formats page under Administration > Configuration >
    Content authoring (admin/config/content/formats).

  • Create or edit a format. Under the "Editor" dropdown, select "CKEditor 5".

  • Drag and drop toolbar items to configure a toolbar for the editor.

  • Additional configuration settings for file and image uploading, style and
    heading lists are in a vertical tab set below the toolbar.


Bugs and Feature Requests should be reported in the Issue Queue:

Current Maintainers


  • Written for Backdrop CMS by Nate Lampton.
  • Most PHP code adapted from CKEditor (4) Backdrop CMS module.
  • Image plugin adapted from Drupal 10 CKEditor 5 module.
  • Link plugin adapted from Drupal Advanced Editor Link 2.x


This project is GPL v2 software.
See the LICENSE.txt file in this directory for complete text.