Chronorails handles adding virtual attributes to your models (with suitable validations, etc) allowing you to set date and duration fields with natural language text.

A clock-based scheduler that runs inside your Rails app.

Multi-fetch optimisation for multiple cached blocks in Rails views.

Provides generated HTML data for rails application

Simple utility to show the replication status for MySQL hots. Usefull to inspect sencond behind master status. This gem depends on Rails and ActiveRecord as ORM.

Provides basic assets for Cielo form inputs, such as credit card flag icons; a helper method that generate inputs and labels for credit card selection; and sass styles that makes flag icons behave as radio buttons.

cinq.css for rails

Sometimes you need to generate passwords in your application. This gem does exactly that. It also has the ability to measure the strength of passwords. In addition it contains a dictionary for creating memorable passwords. Currently the dictionary is only in Norwegian, but you can easily l...

A Rails engine that allows users to create surveys and other users to take those surveys

Casbin for Rails

Renders citero objects for Rails applications.

The Citizen Budget budget simulation model

Citygate is an Engine that provides user model with sign up and log in, admin backend for managing users.

Rails gem to select chinese area, eg province, city, district and county.

CKEditor assets for the Rails 3.1 asset pipeline.

Don't install CarrierWave in every application, keep it in one place.

This gem provides CKEditor driver for your Rails 3 application.

Ckpages

Simple administration framework.

Clapton is a Ruby on Rails gem for building web apps with pure Ruby only (no JavaScript and no HTML templates).