Nesta is a lightweight Content Management System, written in Ruby using the Sinatra web framework. Nesta has the simplicity of a static site generator, but (being a fully fledged Rack application) allows you to serve dynamic content on demand. Content is stored on disk in plain text files (there...

OAuth 2.0 Server & Client Library. Both Bearer token type are supported.

Don’t fool around with adding tracking partials to your app and concentrate on the things that matter.

Rackspace Support for Chef's Knife Command

Rack middleware for rate-limiting incoming HTTP requests.

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 ...

A Rack app that provides request/response rewriting proxy capabilities with streaming.

Rack compatible HTTP router for Ruby

Serve is a small Rack-based web server that makes it easy to serve ERB or HAML from any directory. Serve is an ideal tool for building HTML prototypes of Rails applications. Serve can also handle SASS, Textile, and Markdown if the appropriate gems are installed.

Rack::SslEnforcer is a simple Rack middleware to enforce ssl connections

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

A rack middleware for enforcing rewrite rules. In many cases you can get away with rack-rewrite instead of writing Apache mod_rewrite rules.

A fast, asynchronous, rack-compatible web server.

Simple lib to track events in Mixpanel service. It can be used in any rack based framework.

Astrails-Safe is a simple tool to backup databases (MySQL and PostgreSQL), Subversion repositories (with svndump) and just files. Backups can be stored locally or remotely and can be enctypted. Remote storage is supported on Amazon S3, Rackspace Cloud Files, or just plain FTP/SFTP.

Simple tool to backup databases (MySQL and PostgreSQL) and filesystem locally or to Amazon S3 or Rackspace Cloudfiles (with optional encryption)

Debugging toolbar for Rack applications implemented as middleware

Because you don't allow strangers into your app, and OAuth 2.0 is the new awesome.

Simple CAS authentication for Rails, Sinatra or any Rack-based site

Airbrake Ruby is a plain Ruby notifier for Airbrake (https://airbrake.io), the leading exception reporting service. Airbrake Ruby provides minimalist API that enables the ability to send any Ruby exception to the Airbrake dashboard. The library is extremely lightweight and it perfectly suits plai...