Provide a default Guardfile, but let each of your developers use custom Guard configuration (e.g. their own Guard command).

Manage your FactoryGirl for create a unique instance of model associations and integrate with rspec

Apply ActiveModel validations at a model instance level

get and set @under_scored_instance_variables as recursive Hash

Instant-upload is simply ajax upload for rails (with carrierwave).

Let Integrity post notifications to your Notifiy.io account after each build

Inverted Index implementation

Easily create PDF invoices

Improved ruby option parser.

just the worst

Access to AWS

A generic web crawler that doesn't crawl outside URLs.

Gem for handling IRXML's API

models, specs of models, and assets for microsites_cluster

Embedded sinatra app for answering the is it tomorrow question

An API wrapper for MultiTech iSMS devices - smooths over weird HTTP API

Gem for finding and listing ISO codes for countries, currencies and languages

This gem differs from other ISO country gems in that it allows VERY flexible name lookups, so country names like 'South Korea' will work properly.

Calculate the Isoelectric point

Provides basic methods to access the Issuu API