Kaminari is a Scope & Engine based, clean, powerful, agnostic, customizable and sophisticated paginator for Rails 4+

A simple and Rubyish view helper for Rails

Faster and simpler JSON renderer for Rails

A minimalist's tiny and ultra-fast database cleaner for Active Record

DynamicForm holds a few helper methods to help you deal with your Rails3 models. It includes the stripped out methods from Rails 2; error_message_on and error_messages_for. It also brings in the functionality of the custom-err-messages plugin, which provides more flexibility over your model error messages.

A state machine plugin on top of ActiveRecord::Enum

erd engine on Rails

Rails plugin gem that supports Merbish style controller action arguments.

kaminari-mongoid lets your Mongoid models be paginatable

Test result HTML recorder for capybara, test-unit, minitest, and RSpec

Model.validates { presence_of :name }

kaminari-mongo_mapper lets your MongoMapper models be paginatable

An Active Record DSL extension that allows you to declare multiple associaitons with a block

This gem provides MySQL's LOAD DATA INFILE for Mysql2 and ActiveRecord

Enable active_decorator to automatically decorate associated models

Discovery mentions from ActiveRecord column.

A collection of rails rake tasks for mysql.