This gem implements bcrypt_pbkdf (a variant of PBKDF2 with bcrypt-based PRF)

CBOR is a library for the CBOR binary object representation format, based on Sadayuki Furuhashi's MessagePack library.

google-cloud-debugger is the official library for Stackdriver Debugger.

High Performance Haml Implementation

A fast and very smart autolinking library that acts as a drop-in replacement for Rails `auto_link`

RGeo is a geospatial data library for Ruby. It provides an implementation of the Open Geospatial Consortium's Simple Features Specification, used by most standard spatial/geographic data storage systems such as PostGIS. A number of add-on modules are also available to help with writing location-based applications using Ruby-based frameworks such as Ruby On Rails.

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.

implementation of murmur3 hashing function

A framework to implement robust multiprocess servers like Unicorn

iStats is a command-line tool that allows you to easily grab the CPU temperature, fan speeds and battery information on macOS.

Minimal embedded v8 engine for Ruby

Oga is an XML/HTML parser written in Ruby.

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.

posix-spawn uses posix_spawnp(2) for faster process spawning

Call javascript code and manipulate javascript objects from ruby. Call ruby code and manipulate ruby objects from javascript.

Ruby bindings to RE2, "a fast, safe, thread-friendly alternative to backtracking regular expression engines like those used in PCRE, Perl, and Python".

TinyTDS - A modern, simple and fast FreeTDS library for Ruby using DB-Library. Developed for the ActiveRecord SQL Server adapter.

The Libxml-Ruby project provides Ruby language bindings for the GNOME Libxml2 XML toolkit. It is free software, released under the MIT License. Libxml-ruby's primary advantage over REXML is performance - if speed is your need, these are good libraries to consider, as demonstrated by the informal benchmark below.

The Helix Runtime

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