Do some browser detection with Ruby.

Export i18n translations and use them on JavaScript.

A framework for creating e-books from Markdown using Ruby. Using the Prince PDF generator, you'll be able to get high quality PDFs. Also supports EPUB, Mobi, Text and HTML generation.

Validate, generate and format CPF/CNPJ numbers. Include command-line tools.

Preload factories (Factory Bot) just like fixtures. It will be easier and, probably, faster!

Create a list of hash paths that match a given pattern. You can also generate a hash with only the matching paths.

Send system notifications on several platforms with a simple and unified API. Currently supports Libnotify, OSD, KDE (Knotify and Kdialog) and Snarl

Add some nice ActiveModel/ActiveRecord validators.

Breadcrumbs is a simple plugin that adds a `breadcrumbs` object to controllers and views.

Separate routes for subdomains on Sinatra

Display system notifications after running tests. It works on Mac OS X, Linux and Windows. Powerful when used with autotest or guard.

A simple HTTP client

Add support for PostgreSQL's SEQUENCE on ActiveRecord migrations

This project is a compilation of datasets related to emails. Includes disposable emails, disposable domains, and free email services.

Some utilities for your Minitest day-to-day usage.

Normalize ActiveRecord attributes

Generate permalink attributes on ActiveModel/ActiveRecord

SVG optimization based on Node's SVGO

Enable PostgreSQL's CHECK constraints on ActiveRecord migrations

Override migration methods to support UUID columns without having to be explicit about it.