Another replacement for factories and fixtures that focuses on being DRY and making developers type as little as possible.

Template inliner avoids the problem when to render a large list of objects,

Javascript sprite library for Canvas

Using the Re library, that regular expression can be built incrementaly from smaller, easier to understand expressions.

Make a Ruby class or module extend itself.

this is a very cool lib,

Generate syntax-highlighted slides from Markdown

Helium accepts a list of URLs for different sections of a site then loads and parses each page to build up a list of all

An ActionMailer delivery method to save mails as files in a directory.

So you downloaded inaction_mailer, and you had a folder full of e-mails generated while writing your app?

Large scale server deploys using BitTorrent and the BitTornado library.

Easily show multiple, overlapping events across calendar days and rows.

The Ruby Koans walk you along the path to enlightenment in order to learn Ruby. The goal is to learn the Ruby language, syntax, structure, and some common functions and libraries. We also teach you culture. Testing is not just something we pay lip service to, but something we live. It is essential in your quest to learn and do great things in the language.

Ambitious Query Indexer is a Rails plugin to identify database indexes that are missing. Rather than looking at tables and guessing what needs indexing, it will locate and run as many queries as it can find and suggest indexes that could be added based upon its findings.

Capybara sets up some tags for you to use in Cucumber. Often you’ll want to run only some scenarios with a driver that supports JavaScript, Capybara makes this easy: simply tag the scenario (or feature) with @javascript:

A simple implementation of an Identity Mapper for Active Record.

When we started using git to manage our source code at work, we actually jumped in a little bit too fast. It seems like there is a lot of writing about how you can do lots of really neat things with git, but no real guide about one particular way of using git for your project. This post is going to describe how we use git day to day on a reasonably large “agile-style” project.

Pretty print your Ruby objects with style -- in full color and with proper indentation

Steak is like Cucumber but in plain Ruby.

Rails plugin which adds a convenient way to override attr_accessible protection.... You can mark certain attributes as trusted for different roles.

Rack middleware for rate-limiting incoming HTTP requests.

Asset Fingerprint Plugin for Ruby on Rails - allows you to use md5 or timestamps in query string or in asset filenames as suggested by Google Page Speed