What are the most useful gems to use in Rails?

In Ruby on Rails, there are gems for every purpose: from authentication and authorization, to payments processing and testing. Check out our Ruby gems ... Globalize adds translations of your website's content to ActiveRecord models, which is especially useful when you deal with translation of non-static database content. read more

And here are the most useful gems to use in Rails: Bundler – Audit Updates and fixes can leave your program with small security vulnerabilities that are hard to catch. read more

Devise is most probably the most commonly used Gem when using Ruby on Rails. It provides an easy-to-use authentication solution for your Rails application which will allow you to get login, registration, forget password, account locks and much more account-related features by simply using this Gem. read more

I'm well aware that some of the gems listed here have Rails, or parts of Rails, as a dependency. That doesn't mean that they are any less useful or need to be sneered at. read more