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

qiniutek.com image resize service mocker

A complete http router solution that fit well with pure rack apps.

Rack Rake middleware/app.

Adds a 'rake' method to Rack's Builder DSL, allowing you to execute Rake tasks when configuring your Rack application. This helps to keep your code DRY.

A mock RAML server for Rack-based applications.

Redis backed rack middleware for rate-limiting http requests

a recorder AND a replayer for client actions

Rack::Session in Redis via Redic

Rack middleware to redirect requests based on path, but can be easily extended to match hostname, user-agent, or whatever might be available in the request.

A gem that provides a simple example of rewrites in rack

If the user clicked through from a search engine, this middleware will detect the engine used and the terms searched.

Remember a visitor's referrer across subdomains

Refresh the content of your page with a given interval

This gem is a Rack Middleware to reject requests.

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

Small request intercepting rack middleware to invoke remote calls over HTTP.

Serve property list or JSON configuration files.

Remove POST params from reqs

Redispatch your response via another URL. Like a transparent, internal HTTP redirect.