Envdocs allows you to find missing env keys, as well as create living documentation of the keys themselves.

Asset libraries for web and scaffold templates in modern style (uses "simple_form", "haml", "cancan").

Ephemeron improves the performance of your app. It takes on itself the persistence of the ActiveRecord objects. It protects you from saving the same object many times. It checks whether a fetched from a database object was used. It allows you to eliminate the controller's before_actions that are unnecessarily called. Ephemeron works in the context of the thread and does the bulk of its job (i.a. persistence) at the end of the thread's lifecycle. Although, you can trigger the finalization at any given moment. You don't have to make a distinction in the code for the part that is responsible for the domain logic and the other responsible for the application layers.

EpicEditor for Rails - Is a Ruby on Rails engine which adds a JavaScript Markdown Editor to Rails 4 with split fullscreen editing, live previewing, automatic draft saving, offline support, and more.

A simple decorator for Rails to replace Draper.

The Epom gem is a wrapper for Epom API in Ruby.

The EpomRails gem is wrapper for Epom gem in Rails

Embedded Queueing. Background processing within a single process using multi-threading and a SQL database.

Eql provides an ability to use ERB templates with your DB queries

ERDB is a Ruby Gem for generation Entity-Relationship Diagrams (ERD).

Form helper inspired by erector targeting html5

This is a fork of Erector, updated for Rails 4.

A CMS for sites which already have a back-end and don't want another. Pages, posts, and blocks.

biggs is a small ruby gem/rails plugin for formatting postal addresses from over 60 countries. This version is maintained by Ed Ropple off of the abandoned source.

contains an implementation of the ubiquitous 'party model' for managing people, organizations, roles, relationships and contact information. The models in this library are designed to be useful in a variety of circumstances, including headless SOA implementations and batch operations.

Integrates the errapi gem into Ruby on Rails, including generators for configuration.

Rails Engine for rendering error pages

Error pages are dynamically served by the included ErrorsController

Generator of standard HTTP responses and error serializer for models.

Description of EspAuth.