Rack::Debug adds a middlerware interface to ruby-debug http://github.com/github/rack-debug

Rack adapter for Reel

Automatically reloads your Rack based app on file change using Guard.

RestClient on steroids ! Easily add one or more Rack middleware around RestClient to add functionalities such as transparent caching (Rack::Cache), transparent logging, etc.

Racker allows for hierarchical template definitions for Packer.

OKF (Open Knowledge Format) is portable knowledge: Markdown files with YAML frontmatter that both humans and agents read from one source. This gem is the Ruby-native way to work with it. Its companion agent skill authors and curates a bundle. The `okf` command-line tool validates the result for ...

This library allows you to recognize and build URLs in a Rack application.

Websocket interface on Rack Hijack w/ Rails support

Secure, lightweight Rack middleware for Amazon Simple Notification Service (SNS) endpoints. SNS messages are intercepted, parsed, verified, and then passed along to the web application via the 'sns.message' environment key. Heroic::SNS has no dependencies besides Rack (specifically, the aws-sdk g...

Drop-in image thumbnailing middleware for your Rack stack (Merb, Sinatra, Rails, etc).

Mongrel2 Rack handler and pure handler. Works with Rack, so it works with Rails!

Rack Middleware for Code Highlighting.

Simple tool to backup databases (MySQL and PostgreSQL) and filesystem locally or to Amazon S3 or Rackspace Cloudfiles (with optional encryption)

Simple Rails & AWS Lambda Integration using Rack and various utilities.

Astrails-Safe is a simple tool to backup databases (MySQL and PostgreSQL), Subversion repositories (with svndump) and just files. Backups can be stored locally or remotely and can be enctypted. Remote storage is supported on Amazon S3, Rackspace Cloud Files, or just plain FTP/SFTP.

Smoggy Rackspace API

Handle race conditions in Rails JS feature tests caused by outstanding overlapping actions in your app, with rack middleware to let you wait for pending feature test actions to finish

Rack middleware for rate-limiting incoming HTTP requests.

Logtail integration for Rack

Small rack middleware to block your site from unwanted vistors. A little bit more convenient than basic auth - browser will ask you once for the password and then set a cookie to remember you - unlike the http basic auth it wont prompt you all the time.