FinePrint allows site admins to easily create, update and ask users to sign site agreements, keeping a record of when users signed a certain version of each agreement.

Description of Firebase::Auth::Rails.

Factories via fixtures

Lightning Fast Graphing/Visualization, built on RRDTool

Foreman extensions that are required for better Chef integration.

Rails engine to manage front end builds and deployments

Client for GDS' OAuth 2-based SSO

Caches retrieved information to your user profile and reuses it when you query again.

Provides useful helpers to map object with microdata types and display object's properties in view

Allows for your ActiveRecord models to have drafts which are stored in a separate duplicate table.

Simple way to manage feature rollout / flipping

Helpesk includes: tickets, ticket types, email-notification, FAQ, subscribers

Yet another command-line tool for Datadog

Trace your model actions and create activity lists

Easy generation of robots.txt.

Typical paranoid gem built for Rails 4 and with the minimum code needed to satisfy acts_as_paranoid's API

Adds a custom CSV renderer to Rails applications

Launch a landing page on Heroku in less than 10 minutes with JohnHenry. This gem sets up bootstrap and provides Bootstrapped user management pages with Devise. JohnHenry also includes a payment form that works with Stripe and is ready to go immediately.

This gem provides jquery-cookie assets for your Rails 3 application.

kakurenbo-puti provides an ActiveRecord-friendly soft-delete gem. This gem does not override methods of ActiveRecord. I think that kakurenbo-puti is cho-iketeru! (very cool!)