Rack::MethodOverride only checks the X-Http-Method-Override header and the form encoded post body for _method. Rack::MethodOverrideWithParams checks both of those _and_ the query params. So, if you POST xml with a url like http://example.com/?_method=delete the application will see it as a delete request.

Provides a simple router & dispatcher for Rack.

Rack middleware for redirecting 'www' requests, based on the original idea by trevorturk (http://trevorturk.com/2009/11/05/no-www-rack-middleware/).

Rack parameter validation and type coercion.

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.

Includes {'X-Clacks-Overhead': 'GNU Terry Pratchett'} header inside any rack application. http://redd.it/2yt9j6

A simple profiler for Rack applications, only depending on ActiveSupport::Notifications

Rack::RequestID is a Rack middleware for generating request IDs. It generates a request GUID for every request (if one was not already provided) and inserts the request ID as a response header.

Serve static files from S3 via Rack

Show server status

Rack middleware for processing SSI based on the nginx HttpSsiModule. Directives currently supported: 'block' and 'include'

Rack middleware to route requests with subdomains to specified routes with substitutions

Allow web service clients to specify the request time zone in an HTTP header.

Rack middleware for using the Authorization header with token authentication

Rack middleware that validates HTML with w3c validator and displays result in page.

A web console for Rack apps.

A Rack profiler for web applications.

Light API client to communicate with Radar.io API

This extension for Radiant provides tags allowing you to refer to the neighbouring siblings of a page

SNS adds support for javascript and stylesheets.