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

Gems main responsibility is to provide service for copying Carrierwave files between records

Cucumber Factory allows you to create ActiveRecord models from your Cucumber features without writing step definitions for each model.

A modern profiler for your Rails application

Power tools for ActiveRecord relations (scopes)

Instruments for Factory Bot

Preload factories (Factory Bot) just like fixtures. It will be easier and, probably, faster!

Preseed reusable data for factory girl

Adds query origin tracing to your logs.

Oauth and OpenID made dead simple

https://github.com/tsukasaoishi/fresh_connection

Another business actions architecture for Rails apps

Rails style structure for GraphQL API.

Jazz theory is a mathematical system of concepts and relationships, why not make an ActiveModel representation of those concepts?

Builds ActiveRecord outer joins from association paths and provides references to table aliases.

kaminari-grape connects Kaminari and Grape

Double entry bookkeeping with Rails

An extension for Lograge to log SQL queries

A user-centric voting extension for Rails 3 applications.

A faster alternative to the custom use of `in_batches` with `pluck`.