Henshin is a static site generator, with a plugin system and more

Niceities for managing multiple heroku accounts. It uploads SSH keys and replaces credentials

File attachments as attributes for ActiveRecord

Count the occurrence of each of several things. Pure and banal Ruby.

Powerful lookup table behavior added to ActiveRecord.

Easy & powerful configuration for your Ruby applications. Similar to settingslogic with a slightly different approach and a few more features.

A Transmission RPC Client

Provides simple methods for retreiving user, system, and network information

Hotwire is designed to ease the pain of creating Google Wire protocol compatible data source in Ruby.

Auto-magically map Hash[keys] to ActiveRecord.attributes

ActiveRecord extension that logs all changes to your models in an audits table

Cache responses in HTTParty using APICache

Ruby's HTTP server implementation

a Rails gem that allows you to validate a URL entered in a form. It validates if the URL exists by hitting it with a HEAD request. The improved version includes retries for common patterns when the head request is refused before giving a failure notice. It also looks up a SITE_URL constant to the user agent in the headers. Also has the option to also check that the URL returns content of a specified type.

A slider for picking a color hue built with Scriptaculous and Prototype

gem for vertically formatted inspection of a Ruby Hash via an added instance method human_inspect()

A collection of useful generator scripts for Rails.

A Ruby gem for accessing the freely available IDClight (IDConverter Light) web service, which convert between different types of gene IDs such as Hugo and Entrez. Queries are screen scraped from http://idclight.bioinfo.cnio.es.

Access control gem

Simple library to find high quality posters for movies