Skylight is a smart profiler for Rails, Sinatra, and other Ruby apps.

Psych is a YAML parser and emitter. Psych leverages libyaml[http://pyyaml.org/wiki/LibYAML] for its YAML parsing and emitting capabilities. In addition to wrapping libyaml, Psych also knows how to serialize and de-serialize most Ruby objects to and from the YAML format.

a fast strptime/strftime engine which uses VM.

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

Simple wrapper around the pHash library

rbnacl with bundled libsodium

Ruby binding for zstd(Zstandard - Fast real-time compression algorithm). See https://github.com/facebook/zstd

ruby-opencv is a wrapper of OpenCV for Ruby. It helps you to write computer vision programs (e.g. detecting faces from pictures) with Ruby.

A Ruby client for the Cassandra distributed database.

A Ruby library for text classification featuring Naive Bayes, LSI (Latent Semantic Indexing), Logistic Regression, and k-Nearest Neighbors classifiers. Includes TF-IDF vectorization, streaming/incremental training, pluggable persistence backends, thread safety, and a native C extension for fast L...

A fast HTTP / Websocket Server with built-in Pub/Sub support (with or without Redis), static file support and many other features, optimized for Ruby MRI on Linux / BSD / macOS / Windows

A fast HTTP / Websocket Server with built-in Pub/Sub support (with or without Redis), static file support and many other features, optimized for Ruby MRI on Linux / BSD / macOS / Windows

Numo::NArray - New NArray class library in Ruby/Numo.

NMatrix is a linear algebra library for Ruby, written mostly in C and C++.

This is the MySQL API module for Ruby. It provides the same functions for Ruby programs that the MySQL C API provides for C programs. This package is offered as gem for easy installation using RubyGems. It wraps unmodified tmtm's mysql-ruby extension into a proper gem. Please note that tmtm (To...

Counting Bloom Filter implemented in Ruby

Ruby bindings for Lindera, a morphological analysis library for CJK text (Japanese, Korean, Chinese).

Ruby compiler and runtime for the google protocol buffers library.

Expose the bundled libstemmer_c library to Ruby.

Sereal encoder/decoder (https://github.com/Sereal/Sereal)