bullet

help to kill N+1 queries and unused eager loading.

$gem install bullet

Official docs outline

Extra Credit builds an outline of bullet's docs the first time your work uses it. Until then, start at the official documentation.

mimemagic Fast mime detection by extension or content (Uses freedesktop.org.xml shared-mime-info database)
nap Nap is a really simple REST library. It allows you to perform HTTP requests with minimal amounts of code.
omniauth-oauth2 An abstract OAuth2 strategy for OmniAuth.
web-console A debugging tool for your Ruby on Rails applications.
unicode-emoji [Emoji 18.0] Provides Unicode Emoji data and regexes, incorporating the latest Unicode and Emoji standards. Includes a categorized list of r
newrelic_rpm New Relic is a performance management system, developed by New Relic, Inc (http://www.newrelic.com). New Relic provides you with deep infor
fog-json Extraction of the JSON parsing tools shared between a number of providers in the 'fog' gem.
net-sftp A pure Ruby implementation of the SFTP client protocol
uniform_notifier uniform_notifier gives you the ability to send notification through rails logger, customized logger, javascript alert, javascript console, x
matrix An implementation of Matrix and Vector classes.
google-api-client Client for accessing Google APIs
css_parser A set of classes for parsing CSS in Ruby.