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Catch unsafe PostgreSQL migrations in development and run them easier in production (code helpers for table/column renaming, changing column type, adding columns with default, background migrations, etc).

The reliable YouTube API Ruby client

Ronin is a Free and Open Source Ruby Toolkit for Security Research and Development. Ronin also allows for the rapid development and distribution of code, exploits, payloads, etc, via 3rd-party git repositories.

Storytime is a Rails 4+ CMS and blogging engine, with a core focus on content. It is built and maintained by @cultivatelabs

An extension of RuboCop focused on code performance checks.

Handle unread records and mark them as read with Ruby on Rails

Ruby bindings for ImageMagick

A DSL for building fun, high-performance DNS servers.

Build realtime Ruby web applications. Created by the fine folks at Poll Everywhere.

The Ruby gem for querying Maxmind.com's GeoIP database, which returns the geographic location of a server given its IP address

Artificial Intelligence for Ruby - A Ruby playground for AI researchers

Implementation of the Trello API for Ruby

'httpclient' gives something like the functionality of libwww-perl (LWP) in Ruby.

📫 Rails Engine to preview emails in the browser

🎨 The Ruby 2D gem

A framework for creating e-books from Markdown using Ruby. Using the Prince PDF generator, you'll be able to get high quality PDFs. Also supports EPUB, Mobi, Text and HTML generation.

SchemaPlus provides a collection of enhancements and extensions to ActiveRecord

Database constraints made easy for ActiveRecord.

Terminal output styling with intuitive and clean API.

Ruby library for Pusher Channels HTTP API

Pipal, THE password analyser

Fine-grained concurrency for Ruby

Opinionated rails application templates.

:cake: Version Cake is an unobtrusive way to version APIs in your Rails or Rack apps

Tracking made easy: Don’t fool around with adding tracking and analytics partials to your app and concentrate on the things that matter.

Upsert on MySQL, PostgreSQL, and SQLite3. Transparently creates functions (UDF) for MySQL and PostgreSQL; on SQLite3, uses INSERT OR IGNORE.

xlsx generation with charts, images, automated column width, customizable styles and full schema validation. Axlsx excels at helping you generate beautiful Office Open XML Spreadsheet documents without having to understand the entire ECMA specification. Check out the README for some examples of how easy it is. Best of all, you can validate your xlsx file before serialization so you know for sure that anything generated is going to load on your client's machine.

The wise choice for Ruby memoization

A fist full of code metrics

A slice of functional programming to chain ruby services and blocks, thus providing a new approach to flow control. Make them flow!