Add schema comments in your migrations, see them in model annotations and db/schema.rb dump

Mousetrap is a javascript library for handling keyboard shortcuts in your web applications. This gem integrates Mousetrap with Rails asset pipeline for easy of use.

This is a simple and nice gem for SQL prettifying and formatting. Niceql splits, indent and colorize SQL query and PG errors if any. Could be used as a standalone gem without any dependencies. Seamless ActiveRecord integration via rails_sql_prettifier gem.

Building APIs the way you want it.

ROMA is one of the data storing systems for distributed key-value stores. It is a completely decentralized distributed system that consists of multiple processes, called nodes, on several machines. It is based on pure P2P architecture like a distributed hash table, thus it provides high avail...

See github for installation and configuration

SimpleCaptcha is available to be used with Rails 3 + 4 or above and also it provides the backward compatibility with previous versions of Rails.

Who has time to write tests? This is a revolutional tool to make them write themselves.

Bit array for ActiveRecord

Adds various #where_assoc_* methods to ActiveRecord to make it easy to do correct conditions on the associations of the model being queried.

Extends your user model with friendships management methods

Enable librarians, curators, and others who are responsible for digital collections to create attractive, feature-rich websites that feature these collections.

Twitter Bootstrap HTML Helper

Create, manage, and send scheduled email sequences and drip campaigns from your Rails app.

A utility that adds class based enum functionality to ActiveRecord attributes

With more than one application server, validates_uniqueness_of becomes a lie. Two app servers -> two requests -> two near-simultaneous uniqueness checks -> two processes that commit to the database independently, violating this faux constraint. You'll need a database-level constraint for cases li...

Safe destroy for ActiveRecord.

Dynamic Sitemaps is a plugin for Ruby on Rails that enables you to easily create flexible, dynamic sitemaps for Google, Bing, and Yahoo.

Creates surrogate keys on ActiveRecord models, sets cache/surrogate headers, and adds a purge method to ActiveRecord objects.

Garner is a cache layer for Ruby and Rack applications, supporting model and instance binding and hierarchical invalidation.