ActiveRecord attributes stored serialized in a json column, super smooth. Typed and cast like Active Record. Supporting nested models, dirty tracking, some querying (with postgres jsonb contains), and working smoothy with form builders. Use your database as a typed object store via ActiveRecord, in the same models right next to ordinary ActiveRecord column-backed attributes and associations. Your json-serialized attr_json attributes use as much of the existing ActiveRecord architecture as we can.

Simple bitmask attribute support for ActiveRecord

Crummy is a simple and tasty way to add breadcrumbs to your Rails applications.

CSV Validator

Fluentd filter for throttling logs based on a configurable key.

Insert LiveReload into your app easily as Rack middleware

Rambulance provides a simple and safe way to dynamically generate error pages.

RuboCop for git diff.

Making callback tests easy on the fingers and eyes

Define dependency graphs of Sidekiq jobs

Same as SyslogLogger, but without the ridiculous number of dependencies and with the possibility to specify the syslog facility

Ensure uniqueness of your ActiveJob jobs

Integrate PostgreSQL's enum data type into ActiveRecord's schema and migrations.

Arproxy is a proxy between ActiveRecord and database adapter

Enumerations for Ruby with some magic powers!

Makes integrating filepicker.io with rails 4 easy

A Redis backend store for Rack::Cache

Add a blog to your Rails application in minutes with this mountable Rails Engine

A Chargify API wrapper for Ruby using ActiveResource

Godmin is an admin framework for Rails 5+. Use it to build dedicated admin sections for your apps, or stand alone admin apps such as internal tools.