Ruby

Blacklight provides a discovery interface for any Solr (http://lucene.apache.org/solr) index.

A RubyGems.org cache and private gem server

Happy database triggers for ActiveRecord

Pattern recognition for hosts, services, and content

MessagePack implementation for Ruby / msgpack.org[Ruby]

Polo travels through your database and creates sample snapshots so you can work with real world data in development.

Use ActiveRecord transactional callbacks outside of models, literally everywhere in your application.

(DEPRECATED) A gem for turning URLs into website previews

A Pure ruby library to merge PDF files, number pages and maybe more...

Heroku's classic buildpack for Ruby apps

Ruby gem to calculate the similarity between texts using tf*idf

Circuit breaker built with large Ruby apps in mind.

A Penetration Testing Framework, Information gathering tool & Website Vulnerability Scanner

JSON implementation for Ruby

Real Vim ninjas count every keystroke - do you?

Multi-role and whitelist based authorization gem for Rails (and not only Rails!)

Ruby on Rails plugin. Fishes out the Accept-Language header into an array.

ActiveModel validation for email. Including MX lookup and disposable email blocklist

Extends ActiveAdmin to enable a set of great optional UX improving add-ons

Composable Ruby service objects

Analyze code for potentially uncalled / dead methods, now with auto-removal.

WebAuthn ruby server library ― Make your Ruby/Rails web server become a conformant WebAuthn Relying Party

:page_with_curl: Create customizable MiniTest output formats.

Embed SVG documents in your Rails views and style them with CSS

Use simple commands on the server to control client browsers in real-time

Automatically restart Puma cluster workers based on max RAM available

Static analysis tool for checking Ruby code for Sandi Metz' rules.

Flay analyzes code for structural similarities. Differences in literal values, variable, class, method names, whitespace, programming style, braces vs do/end, etc are all ignored.

DeviceDetector is a precise and fast user agent parser and device detector written in Ruby

Heya 👋 is a campaign mailer for Rails. Think of it like ActionMailer, but for timed email sequences. It can also perform other actions like sending a text message.