Use R in your Rack stack

Rack middleware to handle events on file modifications

IE standards headers for Rack

Rack session store for LevelDB

A gem that provides a Redis based web analytics solution for your rack-compliant apps. It gives you detailed analytics about visitors, unique visitors, browsers, OS, visitor recency, traffic sources and more

A collection of Rack middleware to support JSON Schema.

Rack-mountable app to use and configure feature flags via the rollout gem

JRuby-Rack is a combined Java and Ruby library that adapts the Java Servlet API to Rack. For JRuby only.

A message bus for rack

Fontue is a Rack-based, open-source, web font server built for Kernest.com. This project also includes font optimization scripts for use with FontForge

provides a simple endpoint for your rails app for a heartbeat client to connect to

SpeedTracer middleware for server side debugging

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 ...

This middleware acts as a spam trap. It inserts, into every outputted <form>, a text field that a spambot will really want to fill in, but is actually not used by the app. The field is hidden to humans via CSS, and includes a warning label for screenreading software.

Abort requests that take too long, but don't murder Puma workers in the process.

AcornCache is a Ruby HTTP proxy caching library that is lightweight, configurable and can be easily integrated with any Rack-based web application. AcornCache allows you to improve page load times and lighten the load on your server by allowing you to implement an in-memory cache shared by every ...

Runs a rack conform application inside jetty web server

This is a simple lightweight way to expose work-in-progress functionality to developers, testers or other internal users.

Upload files securely

Create web app APIs that respond to one or more formats using an elegant DSL.