A Ruby on Rails CMS that supports Rails 5.1. It's developer friendly and easy to extend.

ComfortableMexicanSofa is a powerful Rails 5.2+ CMS Engine

CMS

Radiant is a simple and powerful publishing system designed for small teams. It is built with Rails and is similar to Textpattern or MovableType, but is a general purpose content managment system--not merely a blogging engine.

Avo is a very custom Content Management System for Ruby on Rails that saves engineers and teams months of development time by building user interfaces and logic using configuration rather than traditional coding; When configuration is not enough, you can fallback to familiar Ruby on Rails code.

Alchemy is a powerful, userfriendly and flexible Rails CMS.

BrowserCMS is a general purpose, open source Web Content Management System (CMS) that supports Ruby on Rails v3.2. It can be used as a standalone CMS, added to existing Rails projects or extended using Rails Engines.

cutting edge cms, blog, wiki, forum ...

CMS for Rails. For Reals.

Nesta is a lightweight Content Management System, written in Ruby using the Sinatra web framework. Nesta has the simplicity of a static site generator, but (being a fully fledged Rack application) allows you to serve dynamic content on demand. Content is stored on disk in plain text files (there is no database). Edit your content in a text editor and keep it under version control (most people use git, but any version control system will do fine). Implementing your site's design is easy, but Nesta also has a small selection of themes to choose from.

A lightweight CMS toolkit for Ruby on Rails, based on Bootstrap.

Sitepress rails integration.

Railsyard - One Ruby on Rails CMS to rule them all!

Open source Rails based content management that works.

Ruby/Rails Content Management Framework

ShinyCMS is an open-source CMS built in Ruby on Rails, with support for themes, plugins, and cloud hosting. (There is also a Perl version: www.github.com/denny/ShinyCMS)

Ruby on Rails Menus extension for Refinery CMS

Serves mostly static pages with blocks of editable copy.

A modular CMS for Ruby on Rails 5 with an intuitive out-of-the-box interface to manage and customize components. Use Binda if you want to speed up your setup process and concentrate directly on what your application is about. Please read the documentation for more information and a quick start guide.

Puffer pages is integratable rails CMS with puffer admin interface

A content management framework for Rails (compatible with 3.1 and 3.2)

Manage Rails, application backend with ease.

Railfrog as a Rails Engine - DEVELOPERS ONLY

CMS system built on fullstack

Station provides a documentation platform ready to use with your custom documentation.

This gem provides a command-line interface to speed up the creation of ubiquo based apps.