MTDevise Rails 5.1 engine that adds multi-tenant basecamp style user logins (multi-tenant authetication using devise) to your ruby on rails application.

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Adds support for a picture_tag and several utilities to automatically convert images to WebP

The peoplefinder provides searchable staff profiles for your organisation. Since it's a rails engine, you can re-skin it for your organisation.

Sunrise is a Open Source CMS

This gem preps a new Rails app with some of the best Rails gems and Jquery sweetness available( Twitter-Bootstrap, Devise, CanCan, Rails Admin, Spreadsheet, ) Not only does it takes care of the installation of these gems, it also extends your scaffolds to give aesthetically improved views. Further, apart from the standard scaffold views, it also creates an AJAX driven integrated view for your scaffold. It dries up your controllers and makes your models friendlier by adding schema stubs and standard validation options. Expect Cucumber integration in our next version

Administrative and social network platform for closed user groups.

Converts ActiveAdmin into a simple CMS

Gem that focus on making a public site's resources very quickly while being very configurable!, supports facebook sharing, instagram and google analytics integration

Dead simple asset uploader attachments for your active record models

Bizside is an utilities to assist building web application.

CMS base on Rails Engin.

A Rails engine for adding blogging to any Rails 4 application

Automatically sends carrierwave uploads to AttachmentScanner to search for viruses, malware and other malicious files.

Places a serialized file into a field as a Base64 string and returns the data-url for it

Box.net/Box.com integration for CarrierWave.

A storage plugin for carrierwave that will retrieving files from a secondary storageif the file is not present in the primary storage. New files will always be stored in the primary storage. This is perfect for use while migrating from one storage to another, or to avoid polluting a production environment when running a staging mirror.

Wrapper for cloudflare transforming images

CarrierWave extension for on fly specifying crop area with preview and cropping images before they saved.

ruby-filemagic and mime-types for carrierwave