JSON-RPC 2.0 client and server

Jubilee is a experimental webserver built for speed, it's based on Vertx.

Jetty-powered running shoes for JRuby/Rack.

Inserts P3P header

If the user clicked through from an affiliated site, this middleware will track affiliate tag, referring url and time.

Rack-Jekyll transforms your Jekyll app into a Rack application.

A plugin-based framework for supporting multiple authentication and authorization systems in Rails/Rack apps. Supports resource-oriented route-by-route access control lists with TLS authentication.

ActiveRecord sharding extension

Process GitHub Webhooks in your Rails app (Controller mixin)

Autoscale your Heroku dynos

A high-performance Ractor web server for Ruby 4.0+: Rack 3-based, with a Rust tokio/hyper front-end and Ractor-parallel Ruby workers and threaded fallback mode.

This is a gem for Rails with Semantic UI assets inside.

Milkode is line based local source code search engine. It have command line interface and web application. It will accelerate the code reading of your life.

The Plezi.io Ruby Framework for real time web applications.

Flash hash implementation for Rack apps.

Rack::Health is a health check interface for rack applications.

Lean and simple host redirection via Rack middleware

Rack middleware for rblineprof (github.com/tmm1/rblineprof)

Web page speed optimizations at the Rack level

Declaratively filter data via URL params, in any Rack app.