Active Merchant is a simple payment abstraction library used in and sponsored by Shopify. It is written by Tobias Luetke, Cody Fauser, and contributors. The aim of the project is to feel natural to Ruby users and to abstract as many parts as possible away from the user to offer a consistent interface across all supported gateways.

Type system for Ruby supporting coercions, constraints and complex types like structs, value objects, enums etc

Fast mime detection by extension or content (Uses freedesktop.org.xml shared-mime-info database)

A fast, safe and extensible Markdown to (X)HTML parser

Terminal screen size detection that works on Linux, macOS and Windows systems and supports Ruby MRI, JRuby, TruffleRuby and Rubinius interpreters.

This CLAide plugin shows information about all available CLAide plugins (yes, this is very meta!). This plugin adds the "plugins" subcommand to a binary so that you can list all plugins (registered in the reference JSON hosted at CocoaPods/cocoapods-plugins)

Provides a better error page for Rails and other Rack apps. Includes source code inspection, a live REPL and local/instance variable inspection for all stack frames.

An extension of svg.js which allows to draw elements with mouse

This pure Ruby library can read and write PNG images without depending on an external image library, like RMagick. It tries to be memory efficient and reasonably fast. It supports reading and writing all PNG variants that are defined in the specification, with one limitation: only 8-bit color depth is supported. It supports all transparency, interlacing and filtering options the PNG specifications allows. It can also read and write textual metadata from PNG files. Low-level read/write access to PNG chunks is also possible. This library supports simple drawing on the image canvas and simple operations like alpha composition and cropping. Finally, it can import from and export to RMagick for interoperability. Also, have a look at OilyPNG at https://github.com/wvanbergen/oily_png. OilyPNG is a drop in mixin module that implements some of the ChunkyPNG algorithms in C, which provides a massive speed boost to encoding and decoding.

FastImage finds the size or type of an image given its uri by fetching as little as needed.

Sorbet's runtime type checking component

String inflections for dry-rb

Use libsass with Ruby!

Create and manage complex tmux sessions easily.

The purpose of this library is to help move the terminal cursor around and manipulate text by using intuitive method calls.

A reserved Jekyll theme that places the utmost gravity on content with a hidden drawer

[Backported security patched version] A Ruby framework for rapid API development with great conventions.

AASM is a continuation of the acts-as-state-machine rails plugin, built for plain Ruby objects.

The Ruby cloud services library. Supports all major cloud providers including AWS, Rackspace, Linode, Blue Box, StormOnDemand, and many others. Full support for most AWS services including EC2, S3, CloudWatch, SimpleDB, ELB, and RDS.

The Ruby cloud services library. Supports all major cloud providers including AWS, Rackspace, Linode, Blue Box, StormOnDemand, and many others. Full support for most AWS services including EC2, S3, CloudWatch, SimpleDB, ELB, and RDS.