pg-eyeballs is a ruby gem that gives you detailed information about how the SQL queries created by the active record code you write are executed by the database. It gives you an easy, ruby friendly way to see the output of the Postgres EXPLAIN command and integrates with the popular query analysi...

Organize ActiveRecord model into a tree structure using PostgreSQL LTree

Adds missing native PostgreSQL data types to ActiveRecord and convenient querying extensions for ActiveRecord and Arel

A lightweight cron scheduler for the Que async job worker

Declaratively filter data via URL params, in any Rack app.

The Let's Encrypt certificate manager for rails

Adds the ability to pull random records from ActiveRecord

Record Cache for Rails 3

Rmre creates ActiveRecord models for legacy database with all constraints found.

A modern fast tagging framework for Rails 3.1+

Better support for legacy database schemas for ActiveRecord, such as columns named class, or any other name that conflicts with an instance method of ActiveRecord.

Provides an internal extension API to ActiveRecord, in the form of middleware-style callback stacks

Allows Sequel to use ActiveRecord connection for database interaction.

A smart sms verification tool

State machine that allows dynamic transitions for business workflows

Sharding

Rails way to harness the power of SQL "EXISTS" statement

Subscribe to changes on ActiveRecord models

ActiveRecord/Rails Integration for the Workflow library. Workflow is a finite-state-machine-inspired API for modeling and interacting with what we tend to refer to as 'workflow'.

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