Quick way to inspect your Rails database, see content of tables, filter, export them to CSV, Excel, EXPLAIN SQL and run SQL queries.

Daru (Data Analysis in RUby) is a library for analysis, manipulation and visualization of data. Daru works seamlessly accross interpreters and leverages interpreter-specific optimizations whenever they are available. It is the default data storage gem for all the statsample gems (glm, timeseries, etc.) and can be used with many others like mixed_models, gnuplotrb, nyaplot and iruby.

Robust subscription support for Rails with Stripe. Provides package levels, coupons, logging, notifications, etc.

Searchlogic makes using ActiveRecord named scopes easier and less repetitive.

Adds methods to set and authenticate against one time passwords 2FA(Two factor Authentication). Inspired in AM::SecurePassword"

A gem that adds simple support for organizing ActiveRecord models into parent–children relationships.

Log parser to identify actions which significantly increase VM heap size

ROXML is a Ruby library designed to make it easier for Ruby developers to work with XML. Using simple annotations, it enables Ruby classes to be mapped to XML. ROXML takes care of the marshalling and unmarshalling of mapped attributes so that developers can focus on building first-class Ruby classes. As a result, ROXML simplifies the development of RESTful applications, Web Services, and XML-RPC.

ActiveRecord Reputation System gem allows rails apps to compute and publish reputation scores for active record models.

Process your uploads in the background by uploading directly to S3

Provide an easy way to check the consistency of the database constraints with the application validations.

Devise Async provides an easy way to configure Devise to send its emails asynchronously using ActiveJob.

RenderSync turns your Rails partials realtime with automatic updates through Faye

A rails (gem) plugin to enable surveys in your application

A simple database agnostic import/export app to transfer data to/from a remote database.

makes after_commit callbacks testable in Rails 3+ with transactional_fixtures

acts_as_follower is a Rubygem to allow any model to follow any other model. This is accomplished through a double polymorphic relationship on the Follow model. There is also built in support for blocking/un-blocking follow records. Main uses would be for Users to follow other Users or for Users to follow Books, etc… (Basically, to develop the type of follow system that GitHub has)

The EmailAddress Gem to work with and validate email addresses.

idb is a tool to simplify some common tasks for iOS pentesting and research. Please see https://github.com/dmayer/idb for more details on installation and usage.

A SQLite based, lightning fast, super efficient and dead simple to setup and use database, cache and job queue for Ruby and Rails applications!