Add some nice ActiveModel/ActiveRecord validators.

Provides sortable_columns helper in active admin resource definitions.

Gem that allows to attach dynamic attributes to ActiveRecord model

An ActiveRecord extension providing convenience methods for timestamp management.

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

An advertising manager mountable engine

Core engine for adva-cms2.

Static engine for adva-cms2.

Creates aliases of ActiveRecord named scopes.

ActiveModel Serializers addon for eliminating N+1 queries problem from the serializers.

Collection of UI widgets on top of anjlab-bootstrap-rails. Datepicker and Timepicker for now.

Document Rest APIs.

Multidb is an ActiveRecord extension for switching between multiple database connections, such as primary/replica setups.

A simple gem that audit ActiveRecord models' attributes or methods by taking snapshots and diff them for you. Starting from scratch to work with Rails 3.2.2 onwards

The unofficial X-Ray Tracing SDK for Ruby.

Birthday gem creates convienent methods for date and datetime fields in ActiveRecord, making it possible to look for birthdays without a hassle.

BrowserWarrior is a Ruby on Rails engine that let you reject your non-modern browser user just one line code

Activities recording and retrieving using a simple Pub/Sub architecture.

A really simple shopping cart implementation for rails.

Chronicle-ETL allows you to extract personal data from a variety of services, transformer it, and load it.