UUID generator/parser in <300 lines. It fully supports UUID versions 1, 3, 4 and 5.

activerecord_uuid_as_pk is a extension for ActiveRecord to enable to use uuid for id attribute.

Creates UUID version 5 out of scientific name string. It uses globalnames.org domain for DNS namespace. There is a 1:1 relationship between the string and the corresponding UUID, so it allows globally connect data about a name string originated from independent sources without a need to negotiate...

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

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

RSpec UUID matcher

Add binary (not string) UUIDs to ActiveRecord in MySQL

Uuid fields for mongoid

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

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

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

Port of wickedbyte/int-to-uuid. Encodes a non-negative 64-bit unsigned integer and an optional 32-bit namespace into a valid RFC 9562 Version 8 UUID.

UUID Validator for ActiveModel

UUID's for Mongoid4

Adds declarative uuid attribute initialization to models

Add UUID type to fast_attributes

UUID attribute for ActiveRecord

Initializer to auto set ID, when PK is a uuid.

add uuid to record