Use searchable selects based on Select2 in Active Admin forms and filters.

Guest user implementation for devise

Fragment cache for graphql-ruby

A lightweight cron scheduler for the Que async job worker

A simple DSL to generate QuickBooks IIF file

Render XLSX from Rails using existing views ( .*.html => .xlsx )

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

PunchingBag is a hit counting and simple trending engine for Ruby on Rails

SEO Meta tags plugin for Ruby on Rails

Manage delta indexes via Delayed Job for Thinking Sphinx

Wrapper over Rails Event Store with conventions and transparent Rails integration

Generate pdf reports on Rails using Jasper Reports reporting tool

Act as Notified is a flexible framework to add notifications to a Rails application

Manage delta indexes via Resque for Thinking Sphinx

Gives ActiveRecord support for PostgreSQL's native inherited tables

Client for GDS' OAuth 2-based SSO

Provide `notice` method to user model to save notices and to shows them later in views with Gritter (growl-like jQuery plugin). Fully support of Rails flash messages also. Helpful to send flash messages from background jobs.

Engine for smoke tests and base classes

An engine that provides common status polling endpoint.

Robokassa is payment system, that provides a single simple interface for payment systems popular in Russia. If you have customers in Russia you can use the gem. The first thing about this gem, is that it was oribinally designed for spree commerce. So keep it in mind.