Middleware for Rack and Sidekiq to scale heroku. A heroku process knows everything it needs in order to scale itself. A little configuration, and you're set.

A tiny helper to sort columns in Rack apps

WardenSkeletonKey is a Rack middleware to automatically log you into your development environment. Saving you seconds and from forgetting those testing passwords. Was it "test123"?

A rack middleware which does css and javascript combining and minification for sites hosted in readonly filesystem environments such as heroku.com

Installs as Rails plugin or Rack middleware for non-Rails apps

Rack middleware to provide route for heartbeat and version pages. Includes links to github repo.

HTML Tidy.

Small Rack (Ruby) application serving OpenVPN status file.

A generalized Rack middleware for importing group contacts from gmail.

Payment gateway abstraction for rack applications. Think omniauth for off-site payment.

Small router based on RACK

Which Browser adds a few helper methods to a rack request making it easier to determine which browser is being used by the client.

Simple logging library inspired by Rack architecture

Rack middleware that logs API calls made to a file for documentation. This gem is being developed for the RapidFTR project - www.rapidftr.com

a Rack and Git based wiki like thing

A declarative authorization Rack middleware that supports custom authorization logic on a per-resource basis

A simple rack application library - alpha release.

Rack session store for MongoDB

A simple way to load your sessions from a MongoDB store

A proxy object around the geoip gem for lazy lookup. Includes a Rack middleware.