A Ruby wrapper for the Slack API

omniauth-slack

Complete Ruby geocoding solution.

Data validation based on predicate logic

Model serialization, paging, side-loading and filtering

SAML SSO for Ruby

Mailgun's Official Ruby Library

Adds typed hstore-backed field support to ActiveRecord models.

Track changes to your models' data. Good for auditing or versioning.

Integrations with Pivotal Tracker based on current Git repository.

A javascript plugin for intelligently selecting date and time ranges, inspired by Google Calendar.

A style guide framework by Fresh Tilled Soil

The most advanced responsive front-end framework in the world. Quickly create prototypes and production code for sites and apps that work on any kind of device.

A datepicker for @twitter bootstrap forked from Stefan Petre's (of eyecon.ro), improvements by @eternicode

A rewriting web proxy for testing interactions between your browser and external sites. Works with ruby + rspec.

nvd3 reusable charts for rails 3

Date range picker component for Twitter Bootstrap

Grab capistrano roles from ec2 tags

A rich Ruby API and DSL for the ElasticSearch search engine/database

Ruby gem for creating & verifying DKIM signatures

Simple full text search for Mongoid ORM

Forms made easy for Rails! It's tied to a simple DSL, with no opinion on markup.

Like acts as state machine (aasm), but _way_ better (it's in Ruby too!)

Ruby Google Chart API

Use Delayed::Job to run cron-like tasks