middleware to let you know when escaped html tags are being rendered, so you can fix them

In early 2011 Facebook started to send all application requests as POST. This Rack middleware converts POST requests back to GET when applicable.

Load gists in the background. KTHXBYE!

Simple rack middleware to copies google custom search script

Rack::HttpEnforcer is a simple Rack middleware to enforce http connections

Restricts requests to specific IP addresses and ranges for specified paths

Live broadcast on app showing fire and blood everywhere? Image hosting site flooded with pornography? Or some other urgent reason to take your app offline in a hurry? rack-killswitch to the rescue.

Make your website faster by deferring loading of images.

A rack middleware to log each HTTP request onto a MongoDB collection

A rack middleware to cache requests in static files, a la Rails' page_cache

Web page speed optimizations at the Rack level - fork

Matriser l'acces a vos applications

A rack-based session store on sdbm/gdbm. you can use this gem in smaller projects.

Rackspace Cloud Monitoring Ruby Bindings, built on top of fog.

Spellcheck your text entry with TinyMCE and Rack SpellChecker

A gem that provides a rack middleware to interract with Superfeedr's API.

Connects your rack app to Takana (http://www.usetakana.com) so you can live edit stylesheets within a Rails app

Mark Tor users using rack, for filtering / throttling / etc

A rack middleware that allows you to define and document tracking pixels in one location

Use Hevents (https://github.com/yarmand/hevents) to create JS init function for Rails controllers and views. Provide helper to setup handlers in your Rails code