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

Administration interface for Ruby on Rails

A Rails engine port of the Sinatra app that is included in Chris Wanstrath's resque gem.

Clearance-based Rails engine for Software as a Service (Saas) that provides account and project management

Adyen HPP payments for Solidus Stores

With this gem you get an faq page and the management tools to make it very easy to update your faq and reduce the demand on your sites customer service

State of the Nation makes modeling object history easy.

Keep your code DRY by inferring column validations from table properties! Automagically validate presence, length, numericality, inclusion and uniqueness of ActiveRecord backed columns.

Integration of Zapier REST hooks pattern within a Ruby on Rails app.

Manage multiple assets related to a specific model

This gem provides user-friendly interface to Google Adwords API.

A JSONAPI compliant API for AlchemyCMS

Dead simple asset uploader attachments for your active record models

AuditTracker helps you centralize data tracking configuration to be used across different models

An opinionated almost-turnkey solution for managing authorization in Rails

Easily use jQuery UI's autocomplete widget with Rails applications.

baby braspag gem to use Braspag gateway

Gem includes validations, card brand detection method, etc.

A mountable Rails engine to create a payment server that can handle the money in your Bitcoin ecosystem

Ruby client for the Booker API - https://developers.booker.com