Add a Jekyll blog to an existing Rails application in seconds

bookshop is an agile book publishing framework for building pdf and (e)books using HTML5, CSS, and JavaScript. The framework is optimized to help publishers, editors, and authors quickly ramp-up, allowing them to jump in and develop their html-to-pdf/(e)boo...

This gem allows you to deploy your rails application to the Engine Yard cloud directly from the command line.

FXRuby is the Ruby binding to the FOX GUI toolkit.

A simple way to add honeypot captchas to Rails forms

ImageScience is a clean and happy Ruby library that generates thumbnails -- and kicks the living crap out of RMagick. Oh, and it doesn't leak memory like a sieve. :) For more information including build steps, see http://seattlerb.rubyforge.org/

Isolate is a very simple RubyGems sandbox. It provides a way to express and automatically install your project's Gem dependencies.

Linguistics is a framework for building linguistic utilities for Ruby objects in any language. It includes a generic language-independant front end, a module for mapping language codes into language names, and a module which contains various English-language utilities.

Ruby bindings for LZ4. LZ4 is a very fast lossless compression algorithm.

Hanna is an RDoc implemented in Haml, making its source clean and maintainable. It's built with simplicity, beauty and ease of browsing in mind.

This implementation conforms to RFC 2898, and has been tested using the test vectors in Appendix B of RFC 3962. Note, however, that while those specifications use HMAC-SHA-1, this implementation defaults to HMAC-SHA-256. (SHA-256 provides a longer bit length. In addition, NIST has stated that SHA...

Sentiment analysis with ruby.

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

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

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.

Apache Buildr is a build system for Java-based applications, including support for Scala, Groovy and a growing number of JVM languages and tools. We wanted something that's simple and intuitive to use, so we only need to tell it what to do, and it takes care of the rest. But also something we c...

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