AlchemyCMS is a Rails CMS engine
Ckeditor 4.x integration gem for rails
ComfortableMexicanSofa is a powerful Ruby on Rails 5.2+ CMS (Content Management System) Engine
A file-based CMS and Static Site Generator
Ruby on Rails + CKEditor 5
An extendable Ruby on Rails CMS that supports Rails 6.0+
Spina CMS
A Ruby on Rails plugin (pre-Rails 3.1) that allows easy implementation of the TinyMCE editor into your applications.