The has_uuid gem adds a UUID to your AR models. See the README for details.

uuid_v7 enables UUID V7 as primary keys in Rails, optimized for Mysql and Sqlite, with efficient migration and integration features.

Overrides setting flash messages to automatically wrap them in a hash. The original message is stored in the :message key and the request UUID is stored in the :request_uuid key.

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

Add binary (not string) UUIDs to ActiveRecord in MySQL

RSpec UUID matcher

Override migration methods to support UUID columns without having to be explicit about it.

SQLite's UUID v4 extension, packaged as a gem.

Uuid fields for mongoid

UUID "version 6" implementation in Ruby

This gem is a Logstash plugin required to be installed on top of the Logstash core pipeline using $LS_HOME/bin/logstash-plugin install gemname. This gem is not a stand-alone program

This gem makes binary uuid attribute easy to use

auto set uuid column with an universal unique id

add uuid to record

Simple UUID implementation, as per RFC 4122

Minecraft username uuid api for ruby

Adds declarative uuid attribute initialization to models

UUID Validator for ActiveModel

Translate an identifier into a UUID

Allows Rails Admin to work with PostgreSQL UUID field type.