Generate random tokens (or use your own) for any ActiveRecord model. Hashes and salts the token before storage in the database using the same methodology as has_secure_password.

Simple tagging with contexts.

has_validated_attributes is a Ruby on Rails gem that lets you validate your fields.

Create Query Objects without a hitch.

HEART helps you start tracking and graphing time-series metrics from your application's data. Simple to setup, so you can start viewing trends in your own custom metrics without coding.

An isolated knowledgebase system for Rails that is mountable inside applications.

An ActionMailer courier for Hertz.

An Intercom courier for Hertz.

A Twilio courier for Hertz.

An ActionMailer courier for Hertz.

A Twilio courier for Hertz.

Maps string to other strings?

Hide and restore nodes with ancestry gem

Hipaapotamus is an amazing gem for amazing people

Hippo is a framework for writing single page web applications. It's a full stack framework that contains both server and client.

Suggest articles from Hacker News. Suggestions will get better over time as the gem learns what you like!

A drop-in PubSubHubBub-compliant Rails Engine for easy hubbubing.

A ruby gem providing social networking features for rails app.

A gem that allows you to add date only, time only and datetime pickers to your forms. This gem also takes into account the way Ruby doesn't parse certain American-friendly dates so it passes along hidden fields with the values expected by rails. When updating the values they are 'localized' using the locale file to get them into the format expected by the picker.

Log HTTP requests to MongoDB for debugging and access them via the web