DataMapper core library

The EmailAddress Gem to work with and validate email addresses.

A simple, Git-powered wiki with a sweet API and local frontend.

Git Reflow manages your git workflow.

Git history statistics generator

Simple Configuration Management Tool

Built-in Pagination Generator for Jekyll

A SQLite based, lightning fast, super efficient and dead simple to setup and use database, cache and job queue for Ruby and Rails applications!

The net-ping library provides a ping interface for Ruby. It includes separate TCP, HTTP, LDAP, ICMP, UDP, WMI (for Windows) and external ping classes.

A gem for generating embeddable HTML previews from URLs.

Ruby API for OpenSearch. See the `opensearch-ruby` gem for full integration.

Ruby client for OpenSearch. See the `opensearch` gem for full integration.

The fastest Ruby PDF library: 0.8ms mean, 5× faster than the industry leaders, 100% pass rate on 3,830 real-world PDFs. Idiomatic Ruby bindings for text extraction, Markdown/HTML conversion, and PDF creation and editing over the pdf_oxide Rust core (the libpdf_oxide cdylib shared by the Python, J...

Google Protocol Buffers serialization and RPC implementation for Ruby.

pygments.rb is a Ruby wrapper for Pygments syntax highlighter

A drop-in replacement for e.g. MemCacheStore to store Rails sessions (and Rails sessions only) in Redis. For great glory!

Provides single sign-on authentication for web applications using the CAS protocol.

Rcov style formatter for SimpleCov

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

The next generation SoundCloud client