Gakubuchi provides a simple way to manage static pages with Asset Pipeline.

Geolocation Form Submission Helper

Use Google Apps as an Authentication Provider

Gem to Easily add Google+ Hangouts to any web page and Rails asset pipeline

Provides standard setup and behaviour for Sidekiq in GOV.UK applications.

Granity is a flexible, caching-friendly authorization engine that provides fine-grained access control for Ruby on Rails applications

OpenAPI 3.0 specification for your (Graphiti) JSON:API

GraphQL IDE for better development workflows (GraphQL Subscriptions, interactive docs)

A rails engine for easily mounting Graphql Voyager.

This gem patches AASM to be able to generate graphs using GraphViz.

Document your Rails application with a living component library and styleguide

Simple yet customizable token generator for Rails 3

Hayfork generates triggers to maintain a Haystack of all searchable fields that Postgres can index easily and efficiently

Webmention sending and receiving for Rails projects.

Ruby on Rails view helpers for the beautiful hand-crafted SVG icons, Heroicons.

Easily configure a Highcharts JS chart for use in a Rails application

Rails model versioning with the power of uni-temporal inherited tables

Rails model versioning with the power of uni-temporal inherited tables

For all of you, who prefer to add JS libraries via gem

While it is easy to just copy from the original github site, having it in a gem file should be even easier!