Moderated fields or whole model instances are serialized and saved into a separate moderations table. The moderation can then be accepted and the changes will be applied to the model. This way, lookups for existing, accepted fields or entries will be much faster than if using something like Papertrail, since the changes that have not yet been accepted are stored outside of the model table - in the moderations table.

has_normalized_attributes is a Ruby on Rails gem that lets you normalize user data for an improved user experience. It takes the messy user inputed data and normalizes it into a nice clean standard format.

Keep specified associations in sync with ease using async reindexing (searchkick gem is required).

Uses Chronic to parse incoming dates and does not raise errors on invalid multi parameter settings

Easily track streaks on your ActiveRecord models.

Create translations for your ActiveRecord models. Uses delegate pattern. Fully tested and used in a several production sites.

Generates a unique slug for use as a drop-in replacement for ids.

vCard like contact and address models and helpers for Rails.

seed util (convert excel to yaml and insert yaml to db)

Ruby library for image galleries generation.

New Relic (on Heroku) currently reports queue times as queuing at the router level. The goal of this gem is to provide new relic with the proper queueing time for requests, which takes into account queue time at the dyno level.

A persistence library based more closely on the repository model. Used in production for several years.

Adds common gamification features such as points, leaderboards, and achievements to a Rails Application.

Horza is a shapeshifter that provides common inputs and outputs for your ORM

Multilingual CMS for managing faq, question/answer, manual etc.

A lightweight framework for doing http-connections in Ruby. Supports cookies, keep-alive, compressing and much more.

Humanizes datetime for Active Record objects.

Gem to convert ActiveRecord attributes and methods to human readable attributes

Easy translation of attribute values for models through locale files in a similar way as for attribute names.

Provides a set of convenient helpers and active model additions for working with multiple languages