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

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

A simple universally unique ID generation library.

Add binary (not string) UUIDs to ActiveRecord in MySQL

Simple, scalable UUID generation.

Druuid generates 64-bit, time-sortable UUIDs.

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

Quickly and easily convert UUIDs to space efficient Base62 strings.

URL-friendly, Base32-encoded UUIDs for Rails models

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

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.

Implementation of UUID v7

Bullet Train Has UUID

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

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.

RSpec UUID matcher

UUID "version 6" implementation in Ruby

This is a UUID class intended to help control data locality when inserting into a distributed data system, such as MongoDB or HBase. There is also a Java implementation. This version does not conform to any external standard or spec. Developed at Groupon in Palo Alto by Peter Bakkum and Michael Craig.

A DataMapper adapter for Amazon's SimpleDB service. Features: * Full set of CRUD operations * Supports all DataMapper query predicates. * Can translate many queries into efficient native SELECT operations. * Migrations * DataMapper identity map support for record caching * Lazy-loaded attributes * DataMapper Serial property support via UUIDs. * Array properties * Basic aggregation support (Model.count("...")) * String "chunking" permits attributes to exceed the 1024-byte limit Note: as of version 1.0.0, this gem supports supports the DataMapper 0.10.* series and breaks backwards compatibility with DataMapper 0.9.*.

An easy uuid wrapper for ruby applications