If you are creating Rack middleware that changes the HTML response, use Rack::Mason to get a head start. Rack::Mason takes care of the boilerplate Rack glue so that you can focus on simply changing the HTML. Notethis is a fork from https://github.com/techiferous/rack-mason (c) techiferous@gmail.com

Add metadata tags to the header

A Rack middleware to publish directries containing media files as podcast

Rack Middleware for node manipulation.

Web page speed optimizations at the Rack level - fork

Pubcookie finally leaves the world of apache!

rack-pygments - Rack Middleware for Pygments, the syntax highlighter

Rack middleware for Pygments use in environments you cannot install Pygments directly (e.g., Heroku).

Proxies rekon as a rack app so you can include it in your rack-based riak application.

Dynamically rewrite markup to add `rel="nofollow noopener noreferrer"` to non-safelisted links.

Rails currently returns HTML 500 responses when sent unparsable XML and JSON and gives no way to rescue and handle it

Rack middleware showing current git (or svn) revision number of application

Lets you extract sensible default content for meta tags using the markup from that page.

Rack middlewares to make building and serving a Single Page App from a Ruby Rack app easy.

Stop treating static-site generators differently than web frameworks. Build your static site using any rack-compatible web framework, then generate a static version with the rackstatic(1) command.

Strips urls from anchors and forms to essentially create an html page that doesn't like anywhere

WebDAV handler for Rack (dav4rack based)

Ruby Client for the Superfeedr

A Ruby client library that provides a unified interface for managing servers via Redfish API across multiple hardware vendors (Dell, HPE, Supermicro, etc.) with automatic vendor detection and adaptation

A Ruby wrapper for the Radian6 REST API