Allows you to create magic PNG images that display differently in the browser than in thumbnails.

Theseus is a library for building random mazes.

Command line interface for IBM Aspera products

Image comparison lib built on top of ChunkyPNG

QR code decoder in pure Ruby

Extend functionality for spree to give shop like ordering ability through admin end

Minify SVG assets, and optionally convert them to PNG for browser compatibility.

Dynamic image generation for Compass using ChunkyPNG/PhantomJS.

A ruby implementation of ESC/POS (thermal) printer image command specification.

Gem for placing and getting evercookie for rails application

A simple github-like identicons generator.

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.

Library used to deal with colors and images

CSS-Spriter is a pure ruby PNG spriting library. It can be used standalone or as a Rails plugin, see the readme for details.

Nice class method wrapper for Barby

Library to deserialize Unity assetbundles and assets.

pixelart - yes, you can! generate your own pixel art images (off-blockchain) using any design (in ascii text) in any colors; incl. 2x/4x/8x zoom for bigger sizes

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.

Ruby interface to the Tableau API.