Hatenablog AtomPub API library

A JRuby binding for HBase

Simple Heatmap generator in Ruby. (Requires ImageMagick)

Encapsulate form logic and validations in a simple object

Plug-in that provides I18n Inflector module integration with Rails.

duplicate index checker

A Ruby wrapper for the Instagram REST and Search APIs

A Ruby authorization library

The Jaccard Coefficient Index is a measure of how similar two sets are. This library makes calculating the coefficient very easy, and provides useful helpers.

Share your Jade views between client and server, eliminate code duplication and make your single-page app SEO friendly

Spin up a jetty instance (e.g., the one at https://github.com/projecthydra/hydra-jetty) and wrap test in it. This lets us run tests against a real copy of solr and fedora.

Written to run fast and work on Ruby 1.9 as well as MacRuby

Ruby implementation of the JSON Web Token (JWT) standard, RFC 7519

provides soft delete. Kakurenbo is a re-implementation of paranoia and acts_as_paranoid for Rails4 and 3. implemented a function that other gems are not enough. The usage of the Kakurenbo is very very very simple. Only add `deleted_at`(datetime) to column. Of course you can use `acts_as_paranoid`.In addition, Kakurenbo has many advantageous.

The Ruby library for interfacing with the Twitch.tv API including users, channels, streams, games, and videos.

A simple set of module functions to normalize, validate, and convert common library standard numbers

An opinionated wrapper around libuv for Ruby

Linnaeus provides a redis-backed Bayesian classifier. Words are stemmed, stopwords are stopped, and redis is used to allow for persistent and concurrent training and classification.

llm.rb is a zero-dependency Ruby toolkit for Large Language Models that includes OpenAI, Gemini, Anthropic, xAI (grok), DeepSeek, Ollama, and LlamaCpp. The toolkit includes full support for chat, streaming, tool calling, audio, images, files, and structured outputs (JSON Schema).

LocalBus is a lightweight yet powerful pub/sub system for Ruby applications that enables decoupled communication within a single process. It offers both non-blocking I/O and thread pool processing modes, robust error handling, and fine-grained concurrency controls. Perfect for organizing event-driven architectures, handling background jobs, and managing complex workflows without external dependencies."