stackprof is a fast sampling profiler for ruby code, with cpu, wallclock and object allocation samplers.

jaro_winkler is an implementation of Jaro-Winkler \ distance algorithm which is written in C extension and will fallback to pure \ Ruby version in platforms other than MRI/KRI like JRuby or Rubinius. Both of \ C and Ruby implementation support any kind of string encoding, such as \ UTF-8, EUC-JP, Big5, etc.

Rugged is a Ruby bindings to the libgit2 linkable C Git library. This is for testing and using the libgit2 library in a language that is awesome.

Ruby C bindings to the excellent Yajl JSON stream-based parser library.

ruby-prof is a fast code profiler for Ruby. It is a C extension and therefore is many times faster than the standard Ruby profiler. It supports both flat and graph profiles. For each method, graph profiles show how long the method ran, which methods called it and which methods it called. RubyProf generate both text and html and can output it to standard out or to a file.

Bindings for your Ruby exceptions

A fast, safe and extensible Markdown to (X)HTML parser

EventMachine implements a fast, single-threaded engine for arbitrary network communications. It's extremely easy to use in Ruby. EventMachine wraps all interactions with IP sockets, allowing programs to concentrate on the implementation of network protocols. It can be used to create both network servers and clients. To create a server or client, a Ruby program only needs to specify the IP address and port, and provide a Module that implements the communications protocol. Implementations of several standard network protocols are provided with the package, primarily to serve as examples. The real goal of EventMachine is to enable programs to easily interface with other programs using TCP/IP, especially if custom protocols are required.

Distributes the V8 JavaScript engine in binary and source forms in order to support fast builds of The Ruby Racer

Ruby wrapper for hiredis (protocol serialization/deserialization and blocking I/O)

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

bcrypt() is a sophisticated and secure hash algorithm designed by The OpenBSD project for hashing passwords. The bcrypt Ruby gem provides a simple wrapper for safely handling passwords.

A suite of instrumentation metric primitives that can be exposed through a web services interface.

A fast, safe, extensible parser for CommonMark. This wraps the comrak Rust crate.

A simple, fast Mysql library for Ruby, binding to libmysql

A simple, fast Mysql library for Ruby, binding to libmysql

A simple, fast Mysql library for Ruby, binding to libmysql

Parses SQL queries using a copy of the PostgreSQL server query parser

A focused and fast library to gather memory, cpu, network, load avg and disk information

Provides a C-optimized method for determining if a string is blank