RackDispatch is a Ruby library that makes it simple to build elegant and powerful web applications with Rack. RackDispatch provides a base class for defining your application topology and handlers to perform common server- side tasks.

This Rack middleware allows you to run specific apps when the request domain matches a given filter. The filter can be provided in a number of ways, for example as a regex or as a string.

Rack middleware for redirecting one domain to another.

Per-domain filter for Rack.

Rack::DomainRedirect is a tiny rack middleware for redirecting to the configurable domain. If user request's the service from domain other than that configured it redirects to the first domain on the configuration list. If no domain is configured it does noting and passes requests to another application in the chain.

Rack middleware for creating faking responses for HTTP web services that an application under test communicates with

Rack::Downtime provides a variety of ways to easily trigger and display planned maintenance notifications to users while a site is still up. Various strategies are provided that will work with sites of all sizes.

Provides dws-registry gem functionality from behind a Rack webserver.

A Dynamic Reverse Proxy for Rack

A middleware to process wrong encoded URLs in Rack applications.

Rack middleware for signed encrypted session cookie. It's fully compatible with Rack::Session::Cookie, not only safe but also easy to use

Rails aware Rack middleware for Entra ID authentication.

A tiny middleware that determines whether this request was from the internal network or not.

Rack::EnvInspector is a Rack middleware for debugging that allows you to dump the Rack environment by appending a query parameter to the URL.

Middleware that displays the custom notification for every html page. Designed to work both in production and in development.

Add env ribbon on your rack application views.

Rack::Ermahgerd is a simple Rack middleware that translates the content of a web page into Ermahgerd-ish

Rack middleware to log request errors and respond with standard message

Simple Rack Middleware catching exceptions and rendering the error page of your choice

Racket is a small MVC framework built on top of rack.