A barcode and QR code library that works with regular Ruby (not just JRuby). This gem comes bundled with ZXing C++ (zxing-cpp) and interfaces with it using FFI. As such this gem works with most major Ruby distributions. Modified to not require CMake as a build dependency.

Deterministic Bitcoin Address Generator.

The implementation of Bitcoin Protocol for Ruby.

bloombroom has two bloom filter implementations, a standard filter for bounded key space and a continuous filter for unbounded keys (stream). also contains fast C/FFI FNV hashing and fast bit field and bit bucket field (multi bits).

FFI bindings for Aspell

This gem provides an interface to access novation's launchpad programmatically. LEDs can be lighted and button presses can be evaluated using launchpad's MIDI input/output.

Mongrel2 Rack handler and pure handler. Works with Rack, so it works with Rails!

Open OnDemand core library that provides support for an HPC Center to globally define HPC services that web applications can then take advantage of.

Use pHash with ruby

A Rack handler for the Mongrel2 web server, by Zed Shaw. http://mongrel2.org/

General debugging tool written in Ruby for OSX/Win32/Linux

Capture Screenshots on Windows with Ruby

Ruby bindings for Snow Crash

a project for conversion between Traditional and Simplified Chinese, wrapper in ruby.

Cross-platform solution for simulating mouse events

The win32-eventlog library provides an interface to the MS Windows event log. Event logging provides a standard, centralized way for applications (and the operating system) to record important software and hardware events. The event-logging service stores events from various sourc...

The win32-security library provides an interface for dealing with security related aspects of MS Windows, such as SID's, ACL's and ACE's.

Ruby bindings for Z3 Constraint Solver

Loads page content into AJAX sections with AJAX links, handling the details for you, load content with javascript into designated page containers. Supports multiple and/or nested AJAX sections. Designed to be easy to use, customizable, supports browser history robustly, supports AJAX forms and ha...

This gem is intended to wrap Amazon's SellerCentral pages with a Ruby API. Currently this gem supports accessing buyer feedback only.