rQRCode is a library for encoding QR Codes. The simple interface allows you to create QR Code data structures ready to be displayed in the way you choose.

A set of bindings between Ruby and Mapnik. Supports many of the common uses for Mapnik, and one day, might support all of them. Rendering is available using the standard AGG library, or additionally via Cairo, if the rcairo gem is installed and Mapnik has been compiled with Cairo support.

A library which implements the client VNC protocol to control VNC servers.

Ruby interface to the Tableau API.

Extends Watir to take stitched-together screenshots of full web pages.

A Railtie that provides an asset management system for css, javascript, and sprites in your Rails applications and engines. ActiveAssets includes two libraries, ActiveExpansions and ActiveSprites. ActiveSprites generates sprites defined by a dsl similar to a route definition. Similarly, ActiveExpansions' dsl creates ActionView::Helpers::AssetTagHelper javascript and stylesheet expansions, and adds additional features

Generates transparent PNG and Data URI bumpspark-style sparklines. Use from Ruby directly or as a Rails helper.

Library used to deal with colors and images

Compare screenshots in your tests!

Pure Ruby Datamatrix Generator

The official CLI for Emerge Tools

Mass geotagger using GPX files.

lineup takes to screenshots of your app and compares them to references in order to find design flaws in your new code.

Pageflow page type for a page that contains customizable link areas

Basic, text-only PDF-417 barcode generator.

Pixitar generates random pixel avatar

Parse Photoshop PSD files with ease

A pure Ruby baseline JPEG encoder and decoder with no native dependencies.

a sass port of the noisy js plugin as a compass extension that creates backgrond noise images as base64 data URIs

a sass port of the noisy js plugin as a compass extension that creates backgrond noise images as base64 data URIs