Launch a landing page on Heroku in less than 10 minutes with JohnHenry. This gem sets up bootstrap and provides Bootstrapped user management pages with Devise. JohnHenry also includes a payment form that works with Stripe and is ready to go immediately.

If only this were easier...

Handles application errors and model validations

JsonApi::Parameters allows you to easily translate JSON:API compliant parameters to a structure expected by Rails.

a chatbot framework based on rails

Engine for smoke tests and base classes

Model.validates { presence_of :name }

Japanese postal code tools.

Manage your Amazon Kindle highlights: Sync and cache to an ActiveRecord database and output in various formats

Tools for using GitHub's 'Scientist' library with ActiveRecord, for those of us not operating apps at ROFLscale

lentil supports the harvesting of images from Instagram and provides several browsing views, mechanisms for sharing, tools for users to select their favorite images, an administrative interface for moderating images, and a system for harvesting images and submitting donor agreements in preparatio...

Liquor is a template system based on well-defined, strongly dynamically typed language which is fun to use and easy to debug.

A Javascript loader function to load page specific code for Rails apps.

Mountable Rails Engine for viewing paginated logs from a browser

Better Stack Rails integration

Mailhopper stores your application's emails in an ActiveRecord queue for asynchronous delivery. Use Mailhopper in combination with a delivery agent such as DelayedMailhopper.

Rails plugin, send and preview email with GOV.UK Notify

Web UI for MailyHerald - Email processing solution for Ruby on Rails applications

Rails tagging system that stores tags in a PostgreSQL array column or an SQLite JSON column — no join tables, no extra models, no N+1 queries.

A documentation formatting tool. Mizuho converts Asciidoc input files into nicely outputted HTML, possibly one file per chapter. Multiple templates are supported, so you can write your own.