The easiest way to automate beta deployments and releases for your iOS and Android apps

Shrine is a toolkit for file attachments in Ruby applications. It supports uploading, downloading, processing and deleting IO objects, backed by various storage engines. It uses efficient streaming for low memory usage. Shrine comes with a high-level interface for attaching uploaded files to database records, saving their location and metadata to a database column, and tying them to record's lifecycle. It natively supports background jobs and direct uploads for fully asynchronous user experience.

0.13.0

A drop-in Jekyll Plugin that provides an asset pipeline for JavaScript, CSS, SASS, SCSS. Based around Sprockets (from Rails) and just as powereful it provides everything you need to manage assets in Jekyll.

MetaInspector lets you scrape a web page and get its links, images, texts, meta tags...

Jekyll Picture Tag is a liquid tag that adds responsive images to your Jekyll static site. It follows the picture element pattern, and polyfills older browsers with Picturefill. Jekyll Picture Tag automatically creates resized source images, is fully configurable, and covers all use cases — including art direction and resolution switching — with a little YAML configuration and a simple template tag.

Adds file validators to ActiveModel

A static site generator. Provides dozens of templating languages (Haml, Sass, Compass, Slim, CoffeeScript, and more). Makes minification, compression, cache busting, Yaml data (and more) an easy part of your development cycle.

Apparition is a driver for Capybara that allows you to run your tests on Chrome in a headless or headed manner

A Jekyll plugin to generate Accelerated Mobile Pages.

Protect your carrierwave from image bombs

tDiary is so called Weblog.

A Ruby gem that can create a PowerPoint presentation.

a gem to grab screenshots of webpages, or just parts of webpages

Bullet Train

Scarpe - shoes but running on webview

Ruby library to access the Apple Dev Center and iTunes Connect

Upload screenshots, metadata and your app to the App Store using a single command

Automate taking localized screenshots of your iOS and tvOS apps on every device

FastImage Resize is an extremely light solution for resizing images in ruby by using libgd.