Hydra-Head is a Rails Engine containing the core code for a Hydra application.

Ruby Gem for RFC 3610 - Counter with CBC-MAC (CCM)

An OData Client Library for Ruby. Use this to interact with OData services

By extending Spree Drop Ship to enable supplier payments Spree works as a Marketplace.

Sprig is a library for managing interconnected, environment-specific seed data.

Bridge library to compile .styl stylesheets from ruby code.

WebDriver-backed Watir

Wisepdf uses the shell utility wkhtmltopdf to serve a PDF file to a user from HTML. In other words, rather than dealing with a PDF generation DSL of some sort, you simply write an HTML view as you would normally, and let pdf take care of the hard stuff.

xctracker parses activity logs generated by Xcode and reports build time of Swift projects

Calculates IRR of a Cashflow, similar to Excel's, XIRR formula. It defaults to Newton Method, but will calculate Bisection as well.

This extends ActiveAdmin to allow for better editing of associations.

ActiveRecord sharding extension

Add support to search through (potentially large) belongs_to associations in your Administrate dashboards.

Provides a Ruby library to the complete Bitcoin JSON-RPC API. Implements all methods listed at https://en.bitcoin.it/wiki/Original_Bitcoin_client/API_Calls_list and lets you set options such as the host and port number, and whether to use SSL.

Correios CEP gem finds updated Brazilian addresses by zipcode, directly from Correios database. No HTML parsers.

Password manager used in fastlane.tools

FortyFacets lets you easily build explorative search interfaces based on fields of your active_record models.

A simple image optimizer

Bridge library to compile .styl stylesheets from ruby code.

A gem that provides a Redis based web analytics solution for your rack-compliant apps. It gives you detailed analytics about visitors, unique visitors, browsers, OS, visitor recency, traffic sources and more