sheets allows you to store and browse snippets of text from your command line.

Slide Show (S9) - Write Your Slides in Plain Text w/ Formatting Conventions - A Free Web Alternative to PowerPoint and Keynote

Test your XML with Test::Unit, MiniTest, RSpec, or Cucumber using handy assertions like #assert_xml_equal or #assert_xml_structure_contain.

Text::Hyphen is a Ruby library to hyphenate words in various languages using Ruby-fied versions of TeX hyphenation patterns. It will properly hyphenate various words according to the rules of the language the word is written in. The algorithm is based on that of the TeX typesetting system by Dona...

Introspects your database string field maximum lengths and automatically defines length validations.

Using Vim's client/server functionality, this library exposes a way to spawn a Vim instance and control it programatically. Apart from being a fun party trick, this can be used to integration test Vim script.

Rails way to harness the power of SQL "EXISTS" statement

This gem enables your model to query the database using the earthdistance extension. This should be much faster than using trigonometry functions over standart indexs.

Aquarium is a full-featured Aspect-Oriented Programming (AOP) framework for Ruby that is designed to provide an intuitive syntax and support for large-scale, dynamic aspects.

This is a stub gem to fix the confusion caused by autotest being part of the ZenTest suite. In now points to minitest-autotest as that has been extracted and massively enhanced beyond the original ZenTest autotest.

Bandit provides a way to do multi-armed bandit optimization of alternatives in a rails website

barcharts - print barcharts in your terminal in ascii or with unicode block elements

Ruby API for use with bitstamp.

Allows caching of pages with flash messages by rendering flash messages from a cookie using JavaScript, instead of statically in your Rails view template. Flash contents are converted to JSON and placed in a cookie by an after_filter (default) or a Rack Middleware (option).

date-formatter - date formatter by example; auto-builds the strftime format string from an example date

Enwrite allows you to generate a website from content stored in Evernote.

factbook - umbrella - all together incl. factbook readers, writers 'n' importers

factbook-codes - world factbook country codes (by region, by category, etc.)

factbook-fields - world factbook country profile meta data - categories, fields, subfields, and more

factbook-readers - turn thee world factbook country profile pages into open structured data e.g JSON