A simple universally unique ID generation library.

UUID generator for producing universally unique identifiers based on RFC 4122 (http://www.ietf.org/rfc/rfc4122.txt).

This tool adds the missing UUIDs into the installed Xcode plug-ins so that they can be loaded by newer versions of Xcode.

Add binary (not string) UUIDs to ActiveRecord in MySQL

Guid is a Ruby library for portable GUID/UUID generation. At the moment it can be used on Windows (except first release of Win95 and older) and on Unix. This is a fork of David Garamond's ruby-uuid library.

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

Simple, scalable UUID generation.

Let ActiveRecord serialize and cast your UUIDs to and from binary columns in your database.

Bullet Train Has UUID

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

RSpec UUID matcher

Druuid generates 64-bit, time-sortable UUIDs.

Quickly and easily convert UUIDs to space efficient Base62 strings.

Implementation of UUID v7

Temporally Ordered IDs. Generate universally unique identifiers (UUID) that sort lexically in time order. Torid exists to solve the problem of generating UUIDs that when ordered lexically, they are also ordered temporally. I needed a way to generate ids for events that are entering a system with the following criteria: 1. Fast ID generation 2. No central coordinating server/system 3. No local storage 4. Library code, that is multiple apps on the same machine can use the same code and they will not generate duplicate ids 5. Eventually stored in a UUID field in a database. So 128bit ids are totally fine. The IDs that Torid generates are 128bit IDs made up of 2, 64bit parts. * 64bit microsecond level UNIX timestamp * 64bit hash of the system hostname, process id and a random value.

URL-friendly, Base32-encoded UUIDs for Rails models

FriendlyUUID is a Rails gem that shortens your UUID records' URLs. What once was 758d633c-61d4-4dfc-ba52-b7b498971097 becomes 758d. FriendlyUUID does not introduce any new state to your models, even under the hood. FriendlyUUID URLs are exactly as unique as they need to be. The first record will be one character. Would-be collisions expand to two characters, and so on. FriendlyUUID is inspired by friendly_id, but is focused on being lightweight and specific to models with UUID primary keys.

You need to assign UUIDs to your model? UuidIt makes it as simple as adding one line of code to the according models.

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

UUIDs that are byte-ordered lamport clocks (timestamp, worker_id). Much simpler than type-1 UUID's crappy, weirdo layout.