Protect against typical web attacks, works with all Rack apps, including Rails

A Rack app that provides request/response rewriting proxy capabilities with streaming.

ShamRack plumbs Net::HTTP directly into Rack, for quick and easy HTTP testing.

A Sinatra extension for setting and showing Rails-like flash messages. This extension improves on the Rack::Flash gem by being simpler to use, providing a full range of hash operations (including iterating through various flash keys, testing the size of the hash, etc.), and offering a 'styled_fla...

Warbler is a gem to make a Java jar or war file out of any Ruby, Rails, or Rack application. Warbler provides a minimal, flexible, Ruby-like way to bundle up all of your application files for deployment to a Java environment.

OAuth 2.0 Server & Client Library. Both Bearer token type are supported.

Anti-CSRF Rack middleware

Provides a more HTTPish API around the ruby-openid library

Nesta is a lightweight Content Management System, written in Ruby using the Sinatra web framework. Nesta has the simplicity of a static site generator, but (being a fully fledged Rack application) allows you to serve dynamic content on demand. Content is stored on disk in plain text files (there...

A rack middleware for enforcing rewrite rules. In many cases you can get away with rack-rewrite instead of writing Apache mod_rewrite rules.

Insert LiveReload into your app easily as Rack middleware

Rack::SslEnforcer is a simple Rack middleware to enforce ssl connections

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

Namespaced Rack::Session, Rack::Cache, I18n and cache Redis stores for Ruby web frameworks.

Flash hash implementation for Rack apps.

A session implementation for Rack.

HTTP Accept, Accept-Charset, Accept-Encoding, and Accept-Language for Ruby/Rack

A stackable dynamic tree based Rack router.

A Ruby version of the Rackspace Cloud Files API.

Trinidad allows you to run Rails or Rack applications within an embedded Apache Tomcat container. Serves your requests with the elegance of a cat !