thin-rails overrides the Rack::Handler.default method to return Rack::Handler::Thin which will cause rack (and rails) to use thin by default.

gridfs-rackdav enables you to use GridFS as backend for WebDAV collections with RackDAV application

The Rack::Builder extracted from Rack

Xapian::Rack provides indexing and searching integration with Rack.

Rack::Handler using rubylet-rack and Jetty or Tomcat

passenger-rails-server overrides the Rack::Handler.default method to return Rack::Handler::Passenger which will cause rack (and rails) to use passenger by default.

Rack Iphone is use for auto login for web app from iphone when activated from home screen shortcut. The Gem is Inspired by work of Jim Hoskins gem rack_iphone_web_app

Luban::Rack is a Luban deployment application to manage Rack based web application deployment and control

Rack routing middleware supporting rack apps as actions, and parameterized paths

Rack::Ext::Direct it's an implementation of Ext.Direct specification draft for Rack and a ruby client for making remoting calls.

Rack::Cache uses PATH_INFO to calculate the cache-url. Lighttpd sets this wrong. This Rack middleware fixes that

BookingSync-Rack-P3p is rack middleware for inserting P3P headers into apps. This will allow your application to serve cookies to IE when in an iframe. It will also pull off the cookie on 304 responses, since IE does not like the cookie then.

dommy-rack lets a Rack application (including Rails) be visited and manipulated as a Dommy::Document without launching a real browser. It provides a small, synchronous, browser-like session API with navigation, cookies, redirects, link clicking, and form submission.

crashdesk-rack is the Rack gem for integration with crashde.sk servers

rainbows-rails overrides the Rack::Handler.default method to return Rack::Handler::Rainbows which will cause rack (and rails) to use rainbows by default.

Rack middleware for signed encrypted session cookie. It's fully compatible with Rack::Session::Cookie, not only safe but also easy to use

Rack::Probe provides a set of probes for Rack that fire with each request.

Rack Middleware to inject Google Tag Manager code snippet into server html responses for rack based applications

Rack::Profile lets you easily profile your Rack application

The Rack::Builder extracted from Rack