CKEditor is a ready-for-use HTML text editor designed to simplify web content creation. It's a WYSIWYG editor that brings common word processor features directly to your web pages. Enhance your website experience with our community maintained editor.


  • Ckeditor version 4.4.6 (full)
  • Rails 4 integration
  • Files browser
  • HTML5 files uploader
  • Hooks for formtastic and simple_form forms generators
  • Integrated with authorization framework CanCan and Pundit


For basic usage just include ckeditor gem:

gem 'ckeditor'

or if you want to use the latest version from github:

gem 'ckeditor', github: 'galetahub/ckeditor'

Using with ruby 1.8.7

For usage with ruby 1.8.7 you need to specify gem version:

gem 'ckeditor', '4.0.4'

For files uploading support you need generate models for file storage. Currently supported next backends:

  • ActiveRecord (paperclip, carrierwave, dragonfly)
  • Mongoid (paperclip, carrierwave, dragonfly)

How generate models for store uploading files

ActiveRecord + paperclip

For active_record orm is used paperclip gem (it's by default).

gem 'paperclip'

rails generate ckeditor:install --orm=active_record --backend=paperclip

ActiveRecord + carrierwave

gem 'carrierwave'
gem 'mini_magick'

rails generate ckeditor:install --orm=active_record --backend=carrierwave

Mongoid + paperclip

gem 'mongoid-paperclip', :require => 'mongoid_paperclip'

rails generate ckeditor:install --orm=mongoid --backend=paperclip

Mongoid + carrierwave

gem 'carrierwave-mongoid', :require => 'carrierwave/mongoid'
gem 'mini_magick'

rails generate ckeditor:install --orm=mongoid --backend=carrierwave

Load generated models

All ckeditor models will be generated into app/models/ckeditor folder. Models are autoloaded in Rails 4. For earlier Rails versions you need to add them to autoload path (in application.rb):

config.autoload_paths += %W(#{config.root}/app/models/ckeditor)

Mount engine in your routes (config/routes.rb):

mount Ckeditor::Engine => '/ckeditor'


Include ckeditor javascripts in your app/assets/javascripts/application.js:

//= require ckeditor/init

Form helpers:

<%= form_for @page do |form| -%>
  <%= form.cktext_area :notes, :class => 'someclass', :ckeditor => {:language => 'uk'} %>
  <%= form.cktext_area :content, :value => 'Default value', :id => 'sometext' %>
  <%= cktext_area :page, :info, :cols => 40, :ckeditor => {:uiColor => '#AADC6E', :toolbar => 'mini'} %>
<% end -%>

Customize ckeditor

All ckeditor options here

In order to configure the ckeditor default options, create files:



Custom toolbars example

Adding custom toolbar:

# in app/assets/javascripts/ckeditor/config.js

CKEDITOR.editorConfig = function (config) {
  // ... other configuration ...

  config.toolbar_mini = [
    ["Bold",  "Italic",  "Underline",  "Strike",  "-",  "Subscript",  "Superscript"],
  config.toolbar = "simple";

  // ... rest of the original config.js  ...

When overriding default config.js you have to set all configuration yourself since bundled config.js will not be loaded. To see the default configuration run bundle open ckeditor and copy app/assets/javascripts/ckeditor/config.js to your project and customize it to your needs.


For Rails 4, add the following to config/initializers/assets.rb:

Rails.application.config.assets.precompile += %w( ckeditor/* )

Since version 4.1.0, non-digested assets of ckeditor will simply be copied after digested assets were compiled. For older versions, use gem non-stupid-digest-assets, to copy non digest assets.

To reduce the asset precompilation time, you can limit plugins and/or languages to those you need:

# in config/initializers/ckeditor.rb

Ckeditor.setup do |config|
  config.assets_languages = ['en', 'fr']
  config.assets_plugins = ['image', 'smiley']

Note that you have to list your plugins including all their dependencies.

Include customized CKEDITOR_BASEPATH setting

Add your app/assets/javascripts/ckeditor/basepath.js.erb like

  base_path = ''
  if ENV['PROJECT'] =~ /editor/i
    base_path << "/#{Rails.root.basename.to_s}/"
  base_path << Rails.application.config.assets.prefix
  base_path << '/ckeditor/'
var CKEDITOR_BASEPATH = '<%= base_path %>';


jQuery sample:

<script type='text/javascript' charset='UTF-8'>
    $('form[data-remote]').bind('ajax:before', function(){
      for (instance in CKEDITOR.instances){

Formtastic integration

<%= form.input :content, :as => :ckeditor %>
<%= form.input :content, :as => :ckeditor, :input_html => { :ckeditor => { :height => 400 } } %>

SimpleForm integration

<%= form.input :content, :as => :ckeditor, :input_html => { :ckeditor => {:toolbar => 'Full'} } %>

CanCan integration

To use cancan with Ckeditor, add this to an initializer.

# in config/initializers/ckeditor.rb

Ckeditor.setup do |config|
  config.authorize_with :cancan

At this point, all authorization will fail and no one will be able to access the filebrowser pages. To grant access, add this to Ability#initialize

# Always performed
can :access, :ckeditor   # needed to access Ckeditor filebrowser

# Performed checks for actions:
can [:read, :create, :destroy], Ckeditor::Picture
can [:read, :create, :destroy], Ckeditor::AttachmentFile

Pundit integration

Just like CanCan, you can write this code in your config/initializers/ckeditor.rb file

Ckeditor.setup do |config|
  config.authorize_with :pundit

And then, generate the policy files for model Picture and AttachmentFile

$ rails g ckeditor:pundit_policy

By this command, you will got two files: > app/policies/ckeditor/picture_policy.rb app/policies/ckeditor/attachment_file_policy.rb

By default, only the user that logged in can access the models(with action index and create), and only the owner of the asset can destroy the resource.

You can simply customize these two policy files as you like.


    page_title: 'CKEditor Files Manager'
    confirm_delete: 'Delete file?'
      cancel: 'Cancel'
      upload: 'Upload'
      delete: 'Delete'
      next: 'Next'


$> rake test
$> rake test CKEDITOR_ORM=mongoid
$> rake test CKEDITOR_BACKEND=carrierwave

$> rake test:controllers
$> rake test:generators
$> rake test:integration
$> rake test:models

This project rocks and uses MIT-LICENSE.