rack middleware to expose leafy metrics/health data as well a ping rack and a thread-dump rack

Rack application monitoring with StatsD: reports key performance metrics for apps served via Rack (throughput, response times, error rates, etc).

`pitchfork` is a preforking HTTP server for Rack applications designed to minimize memory usage by maximizing Copy-on-Write performance.

Obscenity is a profanity filter gem for Ruby/Rubinius, Rails (through ActiveModel), and Rack middleware

Rack compatible HTTP router for Ruby and Hanami

UI for viewing logs in Rack

Rack middleware to remove invalid UTF8 characters from web requests.

puma-rails overrides the Rack::Handler.default method to return Rack::Handler::Puma which will cause rack (and rails) to use puma by default.

thin-rails overrides the Rack::Handler.default method to return Rack::Handler::Thin which will cause rack (and rails) to use thin by default.

Complete, fast and testable actions for Rack and Hanami

Rack::Probe provides a set of probes for Rack that fire with each request.

Rack Iphone is use for auto login for web app from iphone when activated from home screen shortcut. The Gem is Inspired by work of Jim Hoskins gem rack_iphone_web_app

Rack::OOMKiller is a rack middleware that will check the memory usage of the process post-request, and if > 400mb exit

passenger-rails overrides the Rack::Handler.default method to return Rack::Handler::Passenger which will cause rack (and rails) to use passenger by default.

gridfs-rackdav enables you to use GridFS as backend for WebDAV collections with RackDAV application

The Rack::Builder extracted from Rack

regurgitator is a GPL-licensed library and Rack middleware for serving files stored in MogileFS. It can be embedded inside any existing Rack application or be used as a standalone Rack app.

Luban::Rack is a Luban deployment application to manage Rack based web application deployment and control

dommy-rack lets a Rack application (including Rails) be visited and manipulated as a Dommy::Document without launching a real browser. It provides a small, synchronous, browser-like session API with navigation, cookies, redirects, link clicking, and form submission.

Rack::Cache uses PATH_INFO to calculate the cache-url. Lighttpd sets this wrong. This Rack middleware fixes that