Automate testing code on the browser by using Rack middleware to include JS testing code files into your rendered HTML.

almost-sinatra - six lines of almost sinatra refactored and bundled up for easy (re)use - build your own webframework from scratch with rack and tilt

An MVC web application framework using Rack, Sequel, and Erubis.

Estackprof is a wrapper to make it easier to use Stackprof in your rack application

Minimalist API documentation generator for Rack applications.

A toolkit for building REST APIs on top of Rack

A lightweight init process for Rack apps.

Very simple app services status report for rails, sinatra or rack

Rack and Faraday middleware to temporarily disable connections to external dependencies

Allows the use of get, post, put, and delete to define actions and then allows the controller constant to be used as a rack application.

Assets On Heroku - CSS, JavaScript, Sass. Works with Rails, Merb and Rack apps

A rack middleware to dump request and response, and replayer of recorded requests

Rack Middleware transposing the authenticated identifier for Soar SC

This is a simple reverse proxy for Rack. It is not meant for production systems (although it may work), as the webserver fronting your app is generally much better at this sort of thing.

An early hints Ruby / Rack middleware which just sets Link headers (i.e. for nginx http2_push_preload)

A middleware to automatically set the base URI for [X]HTML documents. This is useful when you want to mount a web application on a subdirectory, e.g. http://example.org/myapp/

Bacchanalytics is a rack middleware that inserts the Asynchronous Google Analytics Tracking Code in your application.

Alternative of shotgun that built on guard

Create Backbone.js powered mobile apps using CoffeeScript and sprockets. Use Rack for testing and development

ballonizer_proxy: rack app to create a proxy version of a site allowing the edition of text ballons (speech bubbles) over the images