Turkee will help you to easily create usability studies, post HITs, and retrieve the user entered values from Mechanical Turk.

VoteFu provides flexible voting capabilities for Rails applications. Features include up/down voting, star ratings, scoped voting contexts, Wilson Score ranking, Reddit Hot algorithm, counter caches, and first-class Hotwire support with Turbo Streams and Stimulus controllers.

Rails way to harness the power of SQL "EXISTS" statement

ActiveRecord/Rails Integration for the Workflow library. Workflow is a finite-state-machine-inspired API for modeling and interacting with what we tend to refer to as 'workflow'.

Allows to define form inputs and filters by relation for ActiveAdmin resource pages using Ransacker to dynamicaly load items while user is typing symbols in filter

UI interface for rails-settings-cached in active admin

Making object from any hash or hash array

Backported from Rails 5.0 to use with 4.x versions

Simulate multi-table inheritance for activerecord models using a polymorphic association

N+1 count query killer for ActiveRecord

Rescue from MySQL and Sqlite duplicate errors

Directed Acyclic Graph hierarchy for Rail's ActiveRecord, supporting Rails 4.x

Rails engine to generate instant reports from adhoc SQL query.

Adds the missing outer_joins method to ActiveRecord

autoNumeric.js library automatically formats currency and numbers. With an ujs flavor it is now directly usable in a rails project. All credits for autoNumeric.js library its-self go to its creator BobKnothe

Blacklight Range Limit plugin

Bootstrap 4 styling for Kaminari gem

bootstrap-sass extras.

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

AJAX/Rails engine file browser for cloud storage services