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Kontrast is a testing tool that lets you build a frontend test suite to run against your test and production websites. It uses Selenium to take screenshots and ImageMagick to compare them. Kontrast then produces a detailed gallery of its test results.

A "control plane" for Microservices "service mesh".

Lanyon is a good friend of Jekyll, the static site generator, and transforms your website into a Rack application.

Implements the W3C Linked Data Patch Format and operations for RDF.rb. Makes use of the SPARQL gem for performing updates.

A really simple pagination library, heavily based on the agnostic branch of will_paginate

Lennarb provides a lightweight yet robust solution for web routing in Ruby, focusing on performance and simplicity.

An ActiveSupport cache store that uses the C-based libmemcached client through Evan Weaver's Ruby/SWIG wrapper, memcached. libmemcached is fast, lightweight, and supports consistent hashing, non-blocking IO, and graceful server failover.

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Ruby client library for Litmus Instant API, provides the simplest way to capture instant email previews in real clients from Ruby.

LiveKit Server SDK for Ruby

Log aggregation through unified logging middleware, while respecting the original log format.

LogSpy is a rack middleware sending request log to Amazon SQS

Logtail integration for Rack

A client library for interacting with JSON API servers, based on http://jsonapi.org/ version 1.0.

Mâché provides helps you to write cleaner and more expressive acceptance tests for your web applications using page objects.

Why another static site generator? Machined is for the developers who know and love the asset pipeline of Rails 3.1 and want to develop blazingly fast static websites. It's built from the ground up using Sprockets 2.0.

A collection of useful patterns we (Springer Nature) use in our Ruby applications.

A suite of tools for inspecting, interfacing and working with MagLev. It consists of a number of Rack middlewares to record runtime information in the stone, an associated set of Sinatra middlewares for exposing said information through a JSON interface, and a number of Sinatra web-applications t...

Rails system mail management solution.