Access environment variables. Also includes presence validation, type coercion and default values.

Local error visibility for Rails' ActiveSupport::ErrorReporter

Nice error handling

Simple, beautiful error messages for Rails. Err_supply unpacks and rekeys the standard Rails error hash to make applying error messages to your views dead simple. Even better, because the library cures Rails' brain-damaged way of recording errors from nested resources/attributes, err_supply works with both simple and complex forms.

Enables use of ES6 in assets, views and inline.

Escher helps you creating secure HTTP requests (for APIs) by signing HTTP(s) requests.

Add Assets and Views into the Rails ETag Equation.

A Ruby library for interfacing with all aspects of the EVE Online MMO. It is designed for use within a Ruby on Rails project, but does not require Rails as a dependency. That means there is nothing preventing you from writing a stand-alone application or script using this library.

Calendar with event that uses many models

Provides basic event management features with versioned history of changes.

simple elegant customize hooks

Execute SQL directly in rails console or in the code.

Measure execution time in Rails console

AB Test framework for Rails

ExpressAdmin is the admin menu framework used by appexpress.io, ExpressBlog, etc.

ExpressMailer is intended to be a quick and easy way to send yourself or your team members nice looking emails about things that happen in your rails application. No need for creating a new Mailer, copy views, wade through email HTML, or any of that. Just tell ExpressMailer a few things about what you want to send, and it makes a pre-designed ActionMailer object you can manipulate or deliver.

Smooth Active Admin interface

Facteur allows you add a messaging system in your Rails 3. You can create many mailboxes for your users. They will be able to send and receive messages.

Enables easy table rendering in rails applications

Speeds up seeding database using multiple SQL inserts