Ruby/ProgressBar is an extremely flexible text progress bar library for Ruby. The output can be customized with a flexible formatting system including: percentage, bars of various formats, elapsed time and estimated time remaining.

Sprockets is a Rack-based asset packaging system that concatenates and serves JavaScript, CoffeeScript, CSS, Sass, and SCSS.

Parallel tests across CI server nodes based on each test file's time execution. It generates a test time execution report and uses it for future test runs.

Upload files in your Ruby applications, map them to a range of ORMs, store them on different backends.

factory_girl provides a framework and DSL for defining and using factories - less error-prone, more explicit, and all-around easier to work with than fixtures.

Easy upload management for ActiveRecord

Fluentd is an open source data collector designed to scale and simplify log management. It can collect, process and ship many kinds of data in near real-time.

ActiveModel::Serializers allows you to generate your JSON in an object-oriented and convention-driven manner.

Doorkeeper is an OAuth 2 provider for Rails and Grape.

A rack middleware for throttling and blocking abusive requests

SAML Ruby toolkit. Add SAML support to your Ruby software using this library

Amazon S3 output plugin for Fluentd event collector

Works for both HOTP and TOTP, and includes QR Code provisioning

Doorkeeper is an OAuth 2 provider for Rails.

When a Cucumber step fails, it is useful to create a screenshot image and HTML file of the current page

Reconnaissance tool for GitHub organizations

A client library for the Kafka distributed commit log.

Faraday middleware for AWS Signature Version 4 using aws-sigv4.

An unobtrusive ruby authentication library based on ActiveRecord.

Implements the iCalendar specification (RFC-5545) in Ruby. This allows for the generation and parsing of .ics files, which are used by a variety of calendaring applications.