rack-ecg allows you to serve a page that shows you facts about your deployed app to allow you to check that everything is running as it should: git revision, database migrations, and more

Provides a variety of classes useful for security testing and exploit development.

Relational db to ActiveREcord models MAPper

Simple language recognition tool for Ruby based on packrat parsing

Ruby gem for accessing the Ravelry API painlessly, easily, and awesomely.

Arista eAPI Ruby Library

Rbplotly, a Ruby visualization library, allows you to create interactive plots.

A Ruby API providing parsing, generation and validation of CAP(Common Alerting Protocol) messages.

A gem extending RDF.rb with SPARQL dataset construction semantics.

RDF.rb extension for graph bijections and isomorphic equivalence.

RDF.rb extension for parsing/serializing RDF/JSON data.

RDF.rb plugin for parsing/serializing NTriples, RDF/XML, Turtle and RDFa data using the Raptor RDF Parser library.

Reasons over RDFS/OWL vocabularies to generate statements which are entailed based on base RDFS/OWL rules along with vocabulary information. It can also be used to ask specific questions, such as if a given object is consistent with the vocabulary ruleset. This can be used to implement SPARQL Entailment Regimes.

RDF.rb plugin providing a Sesame 2.0 storage adapter.

RDF.rb extension that provides RSpec matchers and shared examples for RDF objects.

RDF::Tabular processes tabular data with metadata creating RDF or JSON output.

RDF::TriG is an TriG reader/writer for the RDF.rb library suite.

RDF.rb extension for parsing/serializing TriX data.

Adds RDF::Literal subclasses for extended XSD datatypes with methods for many XPath and XQuery functions.

Red Colors provides a wide array of features for dealing with colors. This includes conversion between colorspaces, desaturation, and parsing colors.