A code-only gem providing Ruby classes and utilities to parse and process Shopify's Standard Product Taxonomy data from YAML source files into an in-memory Ruby object model. Data files are available at https://github.com/Shopify/product-taxonomy

Add reflection on ActiveModel dynamic attributes that will be created at runtime

Ruby framework for building conversational bots.

Create temporary table-backed ActiveRecord models for use in tests

This gem identifies valid tracking numbers and the service they're associated with. It can also tell you a little bit about the package purely from the number—there's quite a bit of info tucked away into those numbers, it turns out.

APIFuzzer gem builds api for finding security issues through a fuzzer

Ruby/JS GUI framework

High method and class churn has been shown to have increased bug and error rates. This gem helps you know what is changing a lot so you can do additional testing, code review, or refactoring to try to tame the volatile code.

CSV Validator

Tools to build your double entry financial ledger

This library can be used as a module for `fog`.

A configurable and documented Rails view helper for adding gravatars into your Rails application.

Until there is a Kindle API, this will suffice.

Ruby/JS GUI framework

Ruby wrapper for Mailjet's v3 API

PayPal Express Checkout API Client for recurring billing.

Simple positioning for Active Record models.

Duration type

Make your PG migrations safe.

Gem to extend ActionMailer with SendGrid API support