Rack::Pack is a piece of Rack Middleware that packages and optionally compresses assets such as javascripts and stylesheets into single files. In a development environment, assets will be packaged on each request if there have been changes to the source files. In a production environment, assets will only be packaged one time, and only if there have been changes.

A simple CMS system built on top of sinatra for lighweight but feature rich sites

Web page speed optimizations at the Rack level - fork

Sane parameter validation for Rack::Request. Originally written for use with Sansom.

Automatically generate REST APIs for Passbook registration.

Module for caching arbitrary objects / constructs during a request.

Block crawlers who spam your site with fake HTTP referers

Rack middlware to render single page apps (or any html page with javascript) with phantomjs and return plain html for bots.

Throttle HTTP requests using a connection pool for all database connections

Parse post data by MessagePack

Rack middleware to prerender your javascript heavy pages on the fly (fork of prerender_rails).

Pretty JSON for pretty people

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

Proxy to a rack app in a seperate process.

Envelops rack call requests in a cushy warm promise so you don't have to worry.

Pubcookie finally leaves the world of apache!

Generate a REST API for registering and querying push notification device tokens.

Simple web framework built on rack for mapping sinatra-like routes to middleware stacks.

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

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