Jetty Rails aims to run Ruby on Rails and Merb applications with the Jetty Container, leveraging the power of JRuby and jruby-rack. {Jetty}[http://jetty.mortbay.com/jetty/] is an excellent Java Web Server, being and at the same time extremely lightweight. This makes jetty-rails a good alternativ...

This gem makes it easier to start a Puma server that will bind to a dynamic free port by default and provide helper methods like get and post, managing sessions automatically and using keep-alive to make the requests faster. Usually the server would be run when the test suite starts.

A ruby MVC framework implented using rack.

cloud-queues ================ Basic (unoffical) ruby interface into Rackspace Cloud Queues

Web Application Firewall for Rack apps

Matreska is for building adaptable multi-filter, which is inspired by Rack.

An über simple web microframework built on rack and tilt.

A suite of tools for inspecting, interfacing and working with MagLev. It consists of a number of Rack middlewares to record runtime information in the stone, an associated set of Sinatra middlewares for exposing said information through a JSON interface, and a number of Sinatra web-applications t...

Tempfile creation directly on cloud storage (S3, Google, Rackspace etc] which can be utilized in a Ruby application

Adds a method to Rackspace Cloudfiles containers to synchronize files from a container to another.

Makes it trivial to test and deliver emails sent from a single service layer.

RSpec and Cucumber helpers

Debugging toolbar for Rack applications implemented as middleware. Rails 3 compatible version maintained by Logical Reality Design.

A Free Software, multi-threaded, non-blocking network application server designed for low _idle_ power consumption. It is primarily optimized for applications with occasional users which see little or no traffic. yahns currently hosts Rack/HTTP applications, but may eventually support other appl...

Rack middleware for the LockBox centralized API authorization service. Brought to you by the DNC Innovation Lab.

This middleware turns Ruby objects that are not acceptable Rack bodies into xml or json depending upon the accepts header.

Server-side Leash client. Resolve the request user, read app env-vars at runtime, and call platform integrations (Gmail, Google Calendar, Google Drive, Linear, plus a generic escape hatch). Framework-agnostic — works with Rails, Sinatra, Hanami, or plain Rack.

Riak sessions for Rack based application.

Rack middleware which requires that visitors to the site enter a 3-6 digit PIN code to gain access.

Simple sinatra rack middleware for quickapps feedback