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

LINES lets you manage your posts in a clear, consistent frontend. The gracefully slender editor keeps your editing simple and lets you just splash around in your ideas. Once you're happy, just hit publish and see your text, code examples, images, and links shine.

Kuroko2 is a web-based job scheduler/workflow manager created at Cookpad Inc.

Netzke helps you build complex web UI in a modular way

OpenConferenceWare is an open source web application for events and conferences. This customizable, general-purpose platform provides proposals, sessions, schedules, tracks and more.

A UI for James Golick's rollout gem

HTML5 Application Assembler

Write specs for your Rails 3+ generators

Architect is a JavaScript library built on top of Web Workers that will handle and polyfill HTML Web Workers.

Sprockets::Commoner uses Node.JS to compile ES2015+ files to ES5 using Babel directly from NPM, without vendoring it.

Job queue system to run job with Docker

CMS built on rails with love.

A framework for creating themes and plugins for Jekyll sites

This Gem includes a suite of tools for managing webmentions in Jekyll: * Tags * Count of webmentions (filterable) * All webmentions (filterable) * Bookmarks * Likes * Links * Posts * Replies * Reposts * RSVPs * Contents for the `head` of your pages * JavaScript enhancements...

A collection of web filters for rake-pipeline

Spar uses Rack and Sprockets to provide an asset development environment very similar to the asset pipeline found in Rails. It also has built in deployment tasks for deploying your entire site to AWS S3 and Cloudfront.

TrustyCms is a simple and powerful publishing system designed for small teams. It is built with Rails and is similar to Textpattern or MovableType, but is a general purpose content management system--not merely a blogging engine.

Framework for creating rich WebGL-enabled applications using JavaScript and Ruby. Can be used stand-alone to create static JavaScript documents, or integrated seamlessly with Ruby on Rails to build dynamic WebGL applications.

middleman-google-analytics is a Middleman extension that generates Google Analytics tracking code, and keeps your config in config.rb, where it belongs.

A Rails Engine that generates a page transition diagram for your Rails app from request specs