Power Enum allows you to treat instances of your ActiveRecord models as though they were an enumeration of values. It allows you to cleanly solve many of the problems that the traditional Rails alternatives handle poorly if at all. It is particularly suitable for scenarios where your Rails applic...

Build complex SQL queries by defining each subquery separately. Query::Composer will then compose those subqueries together, nesting as needed, to produce the final SQL query.

Failover for ActiveRecord and Redis

A true Bayesian rating system with scope and cache enabled.

RecordWithOperator is a rails plugin that makes your all active record models to be saved or logically deleted with created_by, updated_by, deleted_by automatically. Also it makes creator, updater, deleter association (belongs_to) if the class has created_by, updated_by, deleted_by.

Positionless model sorting for Rails.

Real stubs and spies for HTTP(S) services

Adds shorthands and conveniences to ActiveRecord's handling of indexes

Setler is a Gem that lets one easily implement the "Feature Flags" pattern, or add settings to individual models. This is a cleanroom implementation of what the 'rails-settings' gem does. It's been forked all over the place, and my favorite version of it doesn't have any tests and doesn't work wi...

Simple, conservative slave reads for ActiveRecord

Stateful workflow modeling for Rails

This gem provides asynchronous indexing to Solr for the sunspot gem. It uses a pluggable model for the backing queue and provides support for ActiveRecord, DataMapper, and MongoDB out of the box.

Tenacity provides a database client independent way of specifying simple relationships between models backed by different databases.

Manage delta indexes via Resque for Thinking Sphinx

types_from_serializers helps you by automatically generating TypeScript interfaces for your JSON serializers, allowing you typecheck your frontend code to ship fast and with confidence.

ULID for Rails

A library for validating model association existence.

Add some nice ActiveModel/ActiveRecord validators.

Useful helpers to consistently migrate Integer id columns to UUID in PostgreSql. Special support for primary keys and references.

A streamlined, production-focused toolkit for building MCP servers in Rails applications. Provides essential base classes, authentication gateways, and HTTP transport with minimal dependencies.