Use libsass with Ruby!

RubyCritic is a tool that wraps around various static analysis gems to provide a quality report of your Ruby code.

A nifty gem, in pure Ruby, to parse PDF files and combine (merge) them with other PDF files, number the pages, watermark them or stamp them, create tables, add basic text objects etc` (all using the PDF file format).

Check the home page for more in-depth information.

The default_value_for plugin allows one to define default values for ActiveRecord models in a declarative manner

Ruby gem wrapper for the Plaid API. Read more at the homepage, the wiki, or in the Plaid documentation.

Color is a Ruby library to provide basic RGB, CMYK, HSL, and other colourspace manipulation support to applications that require it. It also provides 152 named RGB colours (184 with spelling variations) that are commonly supported in HTML, SVG, and X11 applications. A technique for generating monochromatic contrasting palettes is also included. The Color library performs purely mathematical manipulation of the colours based on colour theory without reference to colour profiles (such as sRGB or Adobe RGB). For most purposes, when working with RGB and HSL colour spaces, this won't matter. Absolute colour spaces (like CIE L*a*b* and XYZ) and cannot be reliably converted to relative colour spaces (like RGB) without colour profiles. Color 1.8 adds an alpha parameter to all <tt>#css_rgba</tt> calls, fixes a bug exposed by new constant lookup semantics in Ruby 2, and ensures that <tt>Color.equivalent?</tt> can only be called on Color instances. Barring bugs introduced in this release, this (really) is the last version of color that supports Ruby 1.8, so make sure that your gem specification is set properly (to <tt>~> 1.8</tt>) if that matters for your application. This version will no longer be supported one year after the release of color 2.0.

Knows how to calculate the SkunkScore for a set of Ruby modules

Check and verify in-app receipts

A set of adapters providing easy access to the GDS GOV.UK APIs

Faalis is a ruby on rails engine which provides a platform to easily build a web application. Features like Dashboard, complex code generation and other awesome features. For more information checkout the docs.

ZeroPush is a simple service for sending iOS push notifications. (http://zeropush.com)

The default_value_for plugin allows one to define default values for ActiveRecord models in a declarative manner

Text-to-speech gem based using Azure Cognitive Speech Services.

Use Dart Sass with Ruby

Interface with EveryPolitician data from your Ruby app

This gem contains a script to start a Unicorn-based server for your Rack application that reloads your automatically when they are changed, but doesn't incur the penalty of reloading all the gem dependencies. It's based on Jonathan D. Stott's blog post "Magical Reloading Sparkles"--hence the name.

Turn Wikidata items into Ruby structures.

An active data frame helper

This gem provides an extension to ActiveRecord, enabling efficient Multi-Table, Multiple-Inheritance for ActiveRecord models.