Sequel support for CarrierWave

Carrierwave plugin that allow mount uploader to serialized field

Gamification is a collection of models for Ruby on Rails that allows you to make anything a game

Landing page storage, rendering, tracking, and management API

Best rails admin panel. Great mechanism for customization and rapid development

Open source Ruby on Rails photo gallery engine designed for integration with Refinery CMS.

Sprig-Reap is a gem that allows you to output your application's data state to seed files.

Simple and real-life tested Rails::Engine admin interface

CarrierWave FFmpeg

Use Globalize to manage Carrierwave translated fields

Simply optimize CarrierWave images via image_optim

mimetype-fu for carrierwave

Riak Storage support for CarrierWave

Secure, encrypted file uploads using Crypt19 and CarrierWave

WebDAV support for CarrierWave

This gem integrates CKEditor 5 with CarrierWave to allow image upload.

This mountable engine has the basic functionality to manage Posts

Moderated fields or whole model instances are serialized and saved into a separate moderations table. The moderation can then be accepted and the changes will be applied to the model. This way, lookups for existing, accepted fields or entries will be much faster than if using something like Papertrail, since the changes that have not yet been accepted are stored outside of the model table - in the moderations table.

Knowledge Base is a bunch of models for Ruby on Rails that you probably need to build your own

Kuhsaft is a Rails engine that offers a simple CMS.