LogSpy is a rack middleware sending request log to Amazon SQS

Easily runs a rack app for tests that hit web APIs

roda-rails offers integration for Roda when used as Rack middleware in a Rails application. It allows the Roda middleware to use Rails flash handling as well as Rails' CSRF support.

Sequel-based session middleware for Rack 2.0+

A rack app for monitoring application health that can be attached to your rails application

clogger is Rack middleware for logging HTTP requests. The log format is customizable so you can specify exactly which fields to log.

Live ObjectSpace introspection (With Rack endpoint)

S3 reverse proxy rack app that accepts multiple buckets.

Rack wrapper around Elasticsearch to provide security and management features

Rack OpenTracing middleware enhanced for Rails

Generate dummy images via Rack

Fast replacement for CGI.escape and Rack::Utils.escape

Lets you see the current state of all throttles and bans. Delete existing keys/bans. Manually add bans.

Easy performance analytics for your Rack/Rails app! Formerly known as 'vizsla.'

Routes Rack::Requests to classes

Rack middleware for logging web requests to a MongoDB database. Provides a profiler for monitoring logging overhead.

A Rack middleware IP filter that uses Http:BL to exclude suspicious robots.

A gem that exposes the Snowplow domain userid in Rack applications. Also allows you to set your own domain userid that will be shared with the Snowplow Javascript tracker.

A Rack middleware IP filter that uses Http:BL to exclude suspicious robots.

Rack task library for using Sprockets standalone.