1. BrowserDo some browser detection with Ruby. Includes ActionController integration.
2. Password strengthCheck password strength against several rules. Includes ActiveRecord/ActiveModel support.
3. Cpf cnpj🇧🇷 Validate, generate and format CPF/CNPJ numbers. Include command-line tools.
4. PagseguroUm plugin para o Ruby on Rails que permite utilizar o PagSeguro
5. Cpf🇧🇷 Validate, generate and format CPF numbers
6. CouponsCoupons is a Rails engine for creating discount coupons.
8. ModuleDefine namespaces as constructor functions (or any object).
9. QeA simple interface over several background job libraries like Resque, Sidekiq and DelayedJob.
10. Has calendarA view helper that creates a calendar using a table. You can easily add events with any content.
12. Rack ApiCreate web app APIs that respond to one or more formats using an elegant DSL.
14. NotifierSend system notifications on several platforms with a simple and unified API. Currently supports Growl, Notification Center, Libnotify, OSD, KDE (Knotify and Kdialog) and Snarl
15. Test notifierDisplay system notifications (dbus, growl and snarl) after running tests. It works on Mac OS X, Linux and Windows. Powerful when used with Autotest ZenTest gem for Rails apps.
16. BreadcrumbsBreadcrumbs is a simple Rails plugin that adds a breadcrumbs object to controllers and views.
17. Ar UuidOverride migration methods to support UUID columns without having to be explicit about it.
21. PaginatePaginate collections using SIZE+1 to determine if there is a next page. Includes ActiveRecord and ActionView support.
22. KitabuA 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.
24. SparklineGenerate SVG sparklines with JavaScript without any external dependency.
25. I18n JsIt's a small library to provide the I18n translations on the Javascript. It comes with Rails support.
29. test squadRunning JavaScript tests on your Rails app, the easy way.
30. storageThis gem provides a simple API for multiple storage backends. Supported storages: Amazon S3 and FileSystem.
31. normalize attributesSometimes you want to normalize data before saving it to the database like down casing e-mails, removing spaces and so on. This Rails plugin allows you to do so in a simple way.
34. gem-openOpen gems into your favorite editor by running a specific gem command
35. ar-checkEnable PostgreSQL's CHECK constraints on ActiveRecord migrations
36. burgundyA simple wrapper for objects (think of Burgundy as a decorator/presenter) in less than 150 lines.
37. rubygems proxyRack app for caching RubyGems files. Very useful in our build server that sometimes fails due to our network or rubygems.org timeout.
42. tokensAdd token support to Rails apps with this plugin
45. superconfigAccess environment variables. Also includes presence validation, type coercion and default values.
46. simple authSimpleAuth is an authentication library to be used when everything else is just too complicated.
48. permalinkAdd permalink support to Rails apps with this plugin
49. cnpj🇧🇷 Validate, generate and format CNPJ numbers
50. voltageA simple observer implementation on POROs (Plain Old Ruby Object) and ActiveRecord objects.