An elegant, structured (X)HTML/XML templating engine.

twitter-bootstrap-rails project integrates Bootstrap CSS toolkit for Rails 7, 6, 5, 4.x (also supports) Asset Pipeline

Admin View for Padrino applications

High Performance Haml Implementation

The dynamic stylesheet language for the Rails asset pipeline. Allows other gems to extend Less load path.

Genghis is a single-file MongoDB admin app, made entirely out of awesome.

Serve is a small Rack-based web server that makes it easy to serve ERB or HAML from any directory. Serve is an ideal tool for building HTML prototypes of Rails applications. Serve can also handle SASS, Textile, and Markdown if the appropriate gems are installed.

Package your assets for Sinatra.

More is a plugin for Ruby on Rails applications. It automatically parses your applications .less files through LESS and outputs CSS files.

SproutCore is a platform for building native look-and-feel applications on the web. This Ruby library includes a copy of the SproutCore JavaScript framework as well as a Ruby-based build system called Abbot.

Font-Awesome LESS gem for use in Ruby projects

A collection of web filters for rake-pipeline

A web interface for Sensu, a monitoring framework that aims to be simple, malleable, and scalable.

A gem for Dan Mayer's resume

Guard::Less automatically compiles less (like lessc --watch)

Convert Less CSS files to standard CSS files as part of your Jekyll build.

Zenweb is a set of classes/tools for organizing and formating a website. It is website oriented rather than webpage oriented, unlike most rendering tools. It is content oriented, rather than style oriented, unlike most rendering tools. It uses a rubygems plugin system to provide a very flexible, ...

Sinatra-support includes many helpers for forms, errors and many amazing things.

Manage CSS/JS assets as dynamic resources rather than static files

Fewer is a Rack endpoint to bundle and cache assets and help you make fewer HTTP requests. Fewer extracts and combines a list of assets encoded in the URL and serves the response with far-future HTTP caching headers.