Bootstrap-generators provides Twitter Bootstrap generators for Rails 4 (supported Rails >= 3.1). Checkout http://getbootstrap.com.

twitter-bootswatch-rails gem integrates TWBS Bootstrap for Rails Asset Pipeline with less-rails

Kaminari views for Twitter Bootstrap (rails engine)

With RailsBootstrapEasyNavbar you can create a simple navigation bar with twitter-bootstrap styling from a given JSON object. The navigation bar may only be a maximum of two levels.

Twitter Bootstrap CSS toolkit for Rails 3 projects

Adds a helper and 7-column grid for creating calendar views

This gem preps a new Rails app with some of the best Rails gems and Jquery sweetness available( Twitter-Bootstrap, Devise, CanCan, Rails Admin, Spreadsheet, ) Not only does it takes care of the installation of these gems, it also extends your scaffolds to give aesthetically improved views. Furthe...

Twitter bootstrap library for hanami applications

Twitter bootstrap library for lotus applications

Padrino Bootstrap Forms is a port of Seth Vargo's Bootstrap Forms for Rails. It makes Twitter's Bootstrap on Padrino easy to use by creating helpful form builders that minimize markup in your views. Currently supports Bootstrap 2.

Twitter Bootstrap for the volt framework

Twitter Bootstrap CSS (with SASS flavour) and JS toolkits for Rails 3 projects

Twitter Bootstrap Form helpers

Twitter's bootstrap, as scss, in a rails engine.

Twitter Bootstrap styles for select2 jQuery plugin. Base css from https://github.com/t0m/select2-bootstrap-css

Twitter Bootstrap less with for rtl languages e.g. persian or arabic.

Bootstrap Sinatra extension

Twitter's Bootstrap, converted to Sass and ready to drop into Rails or Compass

Rack::App Twitter Bootstrap integration

Twitter Bootstrap-based starter theme for Jekyll.