Apartment allows Rack applications to deal with database multitenancy through ActiveRecord

A fast, asynchronous, rack-compatible web server.

An authentication library compatible with all Rack-based frameworks

Rack middleware to measure production code usage (LOC runtime usage)

You probably meant `gem install rack-test`.

You probably meant `gem install rack-protection`.

Request log analyzer's purpose is to find out how your web application is being used, how it performs and to focus your optimization efforts. This tool will parse all requests in the application's log file and aggregate the information. Once it is finished parsing the log file(s), it ...

A message bus for rack

Rodauth is Ruby's most advanced authentication framework, designed to work in all rack applications. It's built using Roda and Sequel, but it can be used as middleware in front of web applications that use other web frameworks and database libraries. Rodauth aims to provide strong security for ...

Namespaced Rack::Session, Rack::Cache, I18n and cache Redis stores for Ruby web frameworks.

Contributed Rack Middleware and Utilities

Debugging toolbar for Rack applications implemented as middleware

Rack middleware for rate-limiting incoming HTTP requests.

Sprockets is a Rack-based asset packaging system that concatenates and serves JavaScript, CoffeeScript, CSS, Sass, and SCSS.

Rack::Test is a small, simple testing API for Rack apps. It can be used on its own or as a reusable starting point for Web frameworks and testing libraries to build on.

Simple testing API built on Rack

Rack::Test is a small, simple testing API for Rack apps. It can be used on its own or as a reusable starting point for Web frameworks and testing libraries to build on. Most of its initial functionality is an extraction of Merb 1.0's request helpers feature.

Nesta is a lightweight Content Management System, written in Ruby using the Sinatra web framework. Nesta has the simplicity of a static site generator, but (being a fully fledged Rack application) allows you to serve dynamic content on demand. Content is stored on disk in plain text files (there...

A fast HTTP server supporting rack.

Warbler is a gem to make a Java jar or war file out of any Ruby, Rails, or Rack application. Warbler provides a minimal, flexible, Ruby-like way to bundle up all of your application files for deployment to a Java environment.