rack-for_now is a Rack middleware component that redirects project URLs to GitHub, Rubygems and other online service. It allows you to use your domain as the permanent URL of your project while still using these handy 3rd-party services.

rack-auth-gitlabapi : provide GitLab API authentication for Rack middleware

rack-bert-rpc is rack middleware that provides a BERT-RPC server implemenation for using BERT-RPC over HTTP

rack-auth-ldap : provide LDAP authentication for Rack middelware

The rack-auth-cookie library provides a Rack middleware interface for authenticating users using a cookie

rack-ssi is a middleware to realize the function of SSI on the rack. (Currently only supports include)

The rack-auth-cheat library provides a Rack middleware interface which authenticates any request with a matching username and password. This is useful in development environments, especially as a way to stub out an external authentication system. Be sure to include this from an en...

Rack-rest-rspec: RSpec Matchers for REST Rack webservice

rack-ecg allows you to serve a page that shows you facts about your deployed app to allow you to check that everything is running as it should: git revision, database migrations, and more

Provides a more HTTPish API around the ruby-openid library

Lookout-Rack Lookout-Rack provides easy interaction with Rack┬╣ from Lookout┬▓. It provides you with a session connected to your Rack application through which you can make requests, check responses, follow redirects and set, inspect, and clear cookies. ...

Flash hash implementation for Rack apps.

Rack middleware for rblineprof (github.com/tmm1/rblineprof)

Rack::Unreloader is a rack middleware that reloads application files when it detects changes, unloading constants defined in those files before reloading.

Streaming proxy for Rack, the rainbows to Rack::Proxy's unicorn.

Ruby Hail is fast-by-design Rack-based nano-framework. It provides generator and helper to quickly create Rack-based web-apps. You have options to make plain html-based app with basic templates. You can chain htmls and utilize ruby string interpolation. You can generate simple json API with au...

Lean and simple host redirection via Rack middleware

Declaratively filter data via URL params, in any Rack app.

Web page speed optimizations at the Rack level

If you are creating Rack middleware that changes the HTML response, use Rack::Plastic to get a head start. Rack::Plastic takes care of the boilerplate Rack glue so that you can focus on simply changing the HTML.