Rack middleware to measure production code usage (LOC runtime usage)

A suite of instrumentation metric primitivesthat can be exposed through a web services interface.

Pronto runs analysis quickly by checking only the relevant changes. Created to be used on pull requests, but suited for other scenarios as well. Perfect if you want to find out quickly if branch introduces changes that conform to your styleguide, are DRY, don't introduce security holes and more.

Karafka is Ruby and Rails efficient Kafka processing framework. Karafka allows you to capture everything that happens in your systems in large scale, without having to focus on things that are not your business domain.

One beautiful Ruby API for GPT, Claude, Gemini, and more. Easily build chatbots, AI agents, RAG applications, and content generators. Features chat (text, images, audio, PDFs), image generation, embeddings, tools (function calling), structured output, Rails integration, and streaming. Works with OpenAI, Anthropic, Google Gemini, AWS Bedrock, DeepSeek, Mistral, Ollama (local models), OpenRouter, Perplexity, GPUStack, and any OpenAI-compatible API. Minimal dependencies - just Faraday, Zeitwerk, and Marcel.

Client for the ACME protocol.

Fast date/time parser with customisable formats, timezone and I18n support.

A framework to implement robust multiprocess servers like Unicorn

Actionable code coverage - detects untested code blocks in recent changes

Ferrum allows you to control headless Chrome browser

Contains the core of Nanoc

This is the ruby client for Unleash, a powerful feature toggle system that gives you a great overview over all feature toggles across all your applications and services.

Transparent proxy support for any EventMachine protocol

Shared code for Pact gems

Library for parsing SSH certificates

Ruby implementation of the ICU (International Components for Unicode) that uses the Common Locale Data Repository to format dates, plurals, and more.

Puppet's accceptance testing harness

RSpec tests for your AWS resources.

Dnsruby is a pure Ruby DNS client library which implements a stub resolver. It aims to comply with all DNS RFCs, including DNSSEC NSEC3 support.

An extension to the sidekiq message processing to track your jobs