Quantity provides first-class quantities, units, and base quantities in pure ruby. Things like 1.meter / 1.second == 1 meter/second.

Racker allows for hierarchical template definitions for Packer.

Client for accessing the Hive/Steem blockchain.

Native extension gem for secp256k1 ECDSA and Schnorr signatures. Wraps libsecp256k1 natively without any need for FFI.

RDF::N3 is an Notation-3 reader/writer and reasoner for the RDF.rb library suite.

RDF::Normalize performs Dataset Canonicalization for RDF.rb.

RDF::RDFXML is an RDF/XML reader and writer for the RDF.rb library suite.

A flexible framework for neural network for Ruby

You can use datasets easily because you can access each dataset with multiple ways such as `#each` and Apache Arrow Record Batch.

Redis-backed rate limiter

Registry for Rails Exceptions

Rich Text Renderer for the Contentful RichText field type

risu is a Nessus .nessus XML parser and report generation tool

OpenStreetMap API client for ruby

RProgram is a library for creating wrappers around command-line programs. RProgram provides a Rubyful interface to programs and all their options or non-options. RProgram can also search for programs installed on a system. files without having to use YAML or define classes named like the file.

Schema-based validation and coercion for Ruby data structures, inspired by Prismatic/schema for Clojure.

HTML equivalence RSpec matcher

Check yardoc format like tag type.

Ruby client library for integrating with Model Context Protocol (MCP) servers to access and invoke tools from AI assistants

Library for working with RTF files