AlchemyCMS is a Rails CMS engine
BrowserCMS: Humane Content Management for Rails
ComfortableMexicanSofa is a powerful Ruby on Rails 5.2+ CMS (Content Management System) Engine
CMS for Rails. For Reals.
Ruby on Rails page builder
A file-based CMS and Static Site Generator
A self hosted Web publishing platform on Rails.
Radiant is a no-fluff, open source content management system designed for small teams.
An extendable Ruby on Rails CMS that supports Rails 6.0+
Spina CMS
Storytime is a Rails 4+ CMS and blogging engine, with a core focus on content. It is built and maintained by @cultivatelabs