EarlReport generates HTML+RDFa rollups of multiple EARL reports.

Simple Ruby code profiler to use both in Rails applications and generic Ruby scripts.

Bulk rename of ebook files (pdf, epub, mobi) based on embedded metadata

Bulk rename multiple ebook files (pdf, epub, mobi) using embedded metadata if available (pure ruby implementation)

Search hosts on AWS EC2

Provides a utility to fetch Avaya CMS / ECHI binary files, convert them and insert into a database table via ActiveRecord

A ruby gem that simplifies the use of Adobe's EchoSign web API.

ECIES is a public-key encryption scheme based on ECC. It can be used to encrypt messages to bitcoin addresses with keys published on the blockchain, and subsequently to decrypt messages by the holders of the address's private key.

eco-helpers to manage people api cases

A simple split and smoke testing tool for Rails

A library to watch the OS X pasteboard, and process/modify incoming pastes.

A Rack handler for the Mongrel2 web server with EventMachine support

A rate-limited Queue for EventMachine

EnhancedErrors will automatically enhance your errors with messages containing variable values from the moment they were raised, using no extra dependencies, and only Ruby's built-in TracePoint.

Core library for encrypted querying operations

Adds support for creating enum state machines for attributes on any Ruby class

Allows ActiveRecord to better use PostgreSQL's ENUM types.

Parse EPUB 3 book loosely

SDK for interacting with the ESP API.

Eventbox is a model of concurrent computation that is used to build thread-safe objects with arbitrary interfaces. It is [kind of advancement](#comparison-threading-abstractions) of the well known [actor model](https://en.wikipedia.org/wiki/Actor_model) leveraging the possibilities of the ruby language. It is a small, consistent but powerful threading abstraction which **integrates well into existing environments**.