Poltergeist is a driver for Capybara that allows you to run your tests on a headless WebKit browser, provided by PhantomJS.

Command line tool and ruby interface to optimize (lossless compress, optionally lossy) jpeg, png, gif and svg images using external utilities (advpng, gifsicle, jhead, jpeg-recompress, jpegoptim, jpegrescan, jpegtran, optipng, oxipng, pngcrush, pngout, pngquant, svgo)

Re:VIEW is a digital publishing system for books and ebooks. It supports InDesign, EPUB and LaTeX.

Process your attachments with FFMPEG

Ruby library to provide server side functionality for elFinder. elFinder is an open-source file manager for web, written in JavaScript using jQuery UI.

ImageInfo finds the size and type of a single or multiple images from the web by fetching as little as needed.

Teardown tool for ipa, apk, aab, hap mobile files and Windows, macOS and dSYM file, even support for info.plist and .mobileprovision files

Mayu Live is a live updating server side VirtualDOM framework for Ruby, inspired by modern frontend tools that exist in the JavaScript ecosystem.

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

GNOME application for managing collections of books

Support to help you develop Zendesk Apps.

This plugin implements attachment storage and processing, integrated with ActiveRecord models and Ruby CGI/Rails-style uploads. Image processing operations including a number of different resizing & thumbnailing modes are provided, and the architecture simplifies clean implementation of other ty...

Optimize (lossless compress, optionally lossy) images (jpeg, png, gif, svg) using external utilities (advpng, gifsicle, jhead, jpeg-recompress, jpegoptim, jpegrescan, jpegtran, optipng, pngcrush, pngout, pngquant, svgo)

the worlds tiniest, bestest, most minmialist headless cms - powered by github ro is a minimalist toolkit for managing heterogeneous collections of rich web content on github, and providing both programatic and api access to it with zero heavy lifting

Allows the user to easily sideload, package, deeplink, test, roku apps.

Wraith is a screenshot comparison tool, created by developers at BBC News.

Generate icon for iOS, Android

Analysis tool for iOS ipa and Android apk.

asciidoctor-csand lets you write CSA Normal Documents (CSAND) in AsciiDoc syntax. This gem is in active development.

asciidoctor-m3d lets you write M3AAWG Documents (M3D) in AsciiDoc syntax. This gem is in active development.