Make text boxes in your web apps handle human inputs like '1+2' or 'next tuesday'

Inum(enumerated type of Integer) provide a java-Enum-like.

Adds the :inverse option to Active Record associations for Active Record 2.3.0 -- 2.3.5.

Read/Write proxy for ActiveRecord using primary/replica databases

job_boss allows you to queue jobs which are unqueued by a "Job Boss" daemon and handed off to workers to process

Easily build jsonapi.org-compatible APIs

Add native support for MySQL [5.7] JSON data type to Rails 4.

ActiveRecord support for mapping complex documents in a single RDBMS row via JSON serialization.

Create flexible builders to export your queries easier than ever

Color search for Rails

Upstream pull request: https://github.com/amatsuda/kaminari/pull/636

puts a cap on your queries

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

Use Keytar to automatically generate keys based on class name instead of cluttering model definitions with tons of redundant key method declarations.

Abuse Sql database as Key-Value store

Kill Bill payment plugin for Paypal Express Checkout.

Queue any method in any class or instance with no need for additional Worker class and no extra code

Process KISSmetrics data dumps

Quickly add KMS encryption and decryption to your ActiveRecord model attributes and ActiveJob parameters. Improves upon kms_attrs with ActiveJob support, more efficient binary serialization and a test suite.

Compose an object from comma separated keys.