pg-eyeballs is a ruby gem that gives you detailed information about how the SQL queries created by the active record code you write are executed by the database. It gives you an easy, ruby friendly way to see the output of the Postgres EXPLAIN command and integrates with the popular query analysis tool gocmdpev

Organize ActiveRecord model into a tree structure using PostgreSQL LTree

Adds missing native PostgreSQL data types to ActiveRecord and convenient querying extensions for ActiveRecord and Arel

Web interface to manage i18n translations for your apps to facilitate the editors of your translations. Provides a low-tech and complete workflow for importing, translating, and exporting your I18n translation files. Design to allows you to keep the translation files inside your projects git repository where they should be.

Record Cache for Rails 3

A smart sms verification tool

Additional Payment Gateways for Solidus

Add support to complex resources of PostgreSQL, like data types, array associations, auxiliary statements (CTE), and full-text search (FTS)

Allows to define form inputs and filters by relation for ActiveAdmin resource pages using Ransacker to dynamicaly load items while user is typing symbols in filter

Jcrop plugin for ActiveAdmin, enable image cropping solution on image fields

UI interface for rails-settings-cached in active admin

Making object from any hash or hash array

Recursively traverse trees using a single SQL query

Rails engine to generate instant reports from adhoc SQL query.

autoNumeric.js library automatically formats currency and numbers. With an ujs flavor it is now directly usable in a rails project. All credits for autoNumeric.js library its-self go to its creator BobKnothe

Brainstem allows you to create rich API presenters that know how to filter, sort, and include associations.

Adds configurable password policy enforcement to devise.

Manage custom fields to a mongoid document or a collection. This module is one of the core features we implemented in our custom cms named Locomotive.

Double entry bookkeeping with Rails

A user-centric flagging extension for Rails 3 applications.