`css_inline` inlines CSS into HTML documents, using components from Mozilla's Servo project. This process is essential for sending HTML emails as you need to use "style" attributes instead of "style" tags.

gc debugger, logger and profiler for rgengc in ruby 2.1

Nokolexbor is a high-performance HTML5 parser, with support for both CSS selectors and XPath. It's API is designed to be compatible with Nokogiri.

Simple library to parse PostgreSQL arrays into a array of strings

Self-contained LIBSVM package for Ruby (that doesn't use SWIG). LIBSVM is a popular implementation of SVM, a machine learning classifier.

Ruby with type.

Fast Json Parser

gc_tracer gem adds GC::Tracer module.

Use jemalloc as default allocator, everywhere!

This gem was originally added to the Metasploit Pcaprub gem. It's been spun out into its own gem for anyone who might want to programmatically get information on their network interfaces.

charlock_holmes provides binary and text detection as well as text transcoding using libicu

Ruby interface for the taglib C++ library, for reading and writing meta-data (tags) of many audio formats. In contrast to other libraries, this one wraps the C++ API using SWIG, not only the minimal C API. This means that all tags can be accessed.

Implements the DataObjects API for Sqlite3

Ruby/GSL is a Ruby interface to the GNU Scientific Library, for numerical computing with Ruby

Jump consistent hash implementation for Ruby

Liquid performance extension in C

Ruby bindings for LZ4. LZ4 is a very fast lossless compression algorithm.

A very fast way to turn TeX math equations into beautifully rendered SVGs, to embed on the web. This library is mostly written in C and is a general purpose wrapper to GNOME's Lasem.

The openwsman gem provides a Ruby API to manage systems using the WS-Management protocol.

Ruby conversion of RPi.GPIO Python module