Rack::Transform is a middleware that attemps to make a compatibility layer between two different request/responses that should hit the same endpoint.

Rack middleware; truncates error body

rack middleware to serve static files with specified patterns. Check out http://gmarik.info/blog/2010/05/10/blogging-with-jekyll-and-heroku-for-free for more...

The Recontributed Rack Middleware

Automatic port forwading via SSH tunneling.

Rack Middleware for validating twilio request signatures

Rack Middleware for OAuth Authorization and Authentication via/twitter

Rack middleware to automatically include your Typekit JavaScript files

rack middleware to add u2f authentication to a rack app. Includes registration.

Elegant workflow for Rack::Auth::Basic

Now you don't have to worry about bugs in your javascript code anymore!

Integrate Unpoly with any Rack or Sinatra application

Many sites these days absolutely require a user to have Javascript enabled in order to function properly. You may have one yourself. Users that either have JS disabled or only allow trusted sites to execute JS should be given a textual warning that their user experience may be hampered. This Rac...

Rack middleware to uppercase your app's responses, built as an example/demo.

Middleware that injects upstream server info into the response

Strips urls from anchors and forms to essentially create an html page that doesn't like anywhere

Rack middleware to modify Unicorn's procline to display request method, path and uuid during the request.

A Rack module for getting and setting a user's locale via a cookie or browser default language.

Rack::Usermanual allows you to serve your gherkin feature files as web pages within your application.

A rack middleware that searches for UTM tags in the request params, and stores them in cookies for later use.