A Ruby client library for ably.io realtime messaging

ActionMailer-like interface for any type of notifications

Run an accessibility audit on a file or URL from the command line.

Acmesmith is an [ACME (Automatic Certificate Management Environment)](https://github.com/ietf-wg-acme/acme) client that works perfect on environment with multiple servers. This client saves certificate and keys on cloud services (e.g. AWS S3) securely, then allow to deploy issued certificates onto your servers smoothly. This works well on [Let's encrypt](https://letsencrypt.org).

Easy and modular way to secure applications and handle permissions.

ActiveFrontend is a refreshingly modern responsive web framework for beautiful and faster project development.

Simple gem that allows you to run multiple ActiveRecord::Relation using hash. Perfect for APIs.

Job status and batches for ActiveJob. Create trackable jobs, check their status, and batch them together.

ActiveRecord Association Helper for PORO (Plain Old Ruby Object)

A custom validation for your Active Model that check if an array is included in another one

ActiveOperation is a micro-framework for modelling business processes.

Simple ActiveRecord diff functionality

ActiveRecordDistinctOn adds support for `DISTINCT ON` to ActiveRecord. At the time of this writing, PostgreSQL is the only database which supports this syntax; however, this gem has been written with database independence in mind so that if another Arel visitor adds support for `Arel::Nodes::DistinctOn` in the future, it should work seamlessly.

Back-ports generated column support, deferred foreign key support, custom foreign key support, improved default configuration, and adds support for pragma tuning and extension loading

ActiveRecord connection adapter for MySQL. It is based on the stock MySQL adapter, and adds built-in support for the spatial extensions provided by MySQL. It uses the RGeo library to represent spatial data in Ruby. This gem is maintained for MySQL 8.0 and 8.4.

This is an ActiveRecord connection adapter for MySQL Spatial Extensions. It is based on the stock MySQL2 adapter, but provides built-in support for spatial columns. It uses the RGeo library to represent spatial data in Ruby.

Yet Another N+1 COUNT Query Killer for ActiveRecord

This gem extends ActiveRecord::Base to add automatic updating of created_by and updated_by attributes of your models in much the same way that the ActiveRecord::Timestamp module updates created_(at/on) and updated_(at/on) attributes.

Provides a form helper to make it easy to make drag and drop file upload fields that work with Rails' Active Storage.

Add a `send_zip` method in your Rails controller to send a `.zip` file containing one (or many) ActiveStorage object(s)