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Feature flippers.

Roo provides an interface to spreadsheets of several sorts.

A Ruby Library for dealing with money and currency conversion.

an application that automates the lifecycle of servers

mini replacement for RMagick

Keep passwords and other sensitive information out of your chat logs and inboxes.

Rails application preloader

Search Engine Optimization (SEO) for Ruby on Rails applications.

Patch-level verification for Bundler

The Rails application that powers OpenStreetMap

A taggable image board written in Rails.

Boot large Ruby/Rails apps faster

ComfortableMexicanSofa is a powerful Ruby on Rails 5.2+ CMS (Content Management System) Engine

Notifications for Ruby on Rails applications

Ruby algorithms and data structures. C extensions

Database multi-tenancy for Rack (and Rails) applications

Client Side Validations made easy for Ruby on Rails

Ruby production code coverage collection and reporting (line of code usage)

An invitation strategy for devise

Quick automated code review of your changes

Sucker Punch is a Ruby asynchronous processing library using concurrent-ruby, heavily influenced by Sidekiq and girl_friday.

xlsx generation with charts, images, automated column width, customizable styles and full schema validation. Axlsx excels at helping you generate beautiful Office Open XML Spreadsheet documents without having to understand the entire ECMA specification. Check out the README for some examples of how easy it is. Best of all, you can validate your xlsx file before serialization so you know for sure that anything generated is going to load on your client's machine.

Friendly English-like interface for your command line. Don't remember a command? Ask Betty.

Loomio is a collaborative decision making tool

Toolkit for developing sleek command line apps.

General Rack Authentication Framework

Tools to transcode, inspect and convert videos.

Ruby on Rails API documentation tool

Do some browser detection with Ruby. Includes ActionController integration.

SitemapGenerator is a framework-agnostic XML Sitemap generator written in Ruby with automatic Rails integration. It supports Video, News, Image, Mobile, PageMap and Alternate Links sitemap extensions and includes Rake tasks for managing your sitemaps, as well as many other great features.