Time-ordered UUIDv4

Ruby wrapper for the uuid library in your OS.

Add timestamps, parent PID's and request UUID's to each logger line.

A standalone Ruby library and command-line tool for communicating with OPNsense firewalls via their REST API. Features include UUID resolution for ModelRelationField references, service reconfigure orchestration, and OPNsense selection-hash normalization.

Provides Stripe-style public identifiers (like usr_abc123) for Rails models using hashids or base62 encoding. Supports both integer and UUID primary keys, with automatic URL parameter handling and controller helpers.

Optional patterns for Rails apps: multi-tenancy, RLS, outbox, health checks, auditing, soft delete, UUID primary keys, and document storage client. All features are configurable via initializer.

GUID Generator is a tool for generating Globally Unique Identifiers (GUIDs). It creates RFC 4122 version 4 UUIDs with multiple formatting options including uppercase, no hyphens, and braces.

Sequel Model plugin that adds [0-9a-z] unique id prefixed by a custom string.

Generate secure 64-bit integers using the same approach used by UUIDs.

RUUID (Ruby UUID) parses, generates, and represents RFC 4122 universally unique identifiers.

A tool to reduce merge conflicts with Xcode projects by creating deterministic UUIDs for every element within the `project.pbxproj` file.

A better way to do UUID in Rails 2/3

Unobtrusive binary UUID support for ActiveRecord. Supports migrations, reflections, assocations and SchemaDumper.

A collection of utilities for uuid manipulation

fast uuid generation and parsing library

HashMan takes any number (or uuid) and converts it to a unique hash. Includes methods on your class to access and reverse hash

Ruby libuuid

You need a UUID from some string. Maybe a URL shortner without a database, or some kind of ID passed as parameter. This gem uses Huffman Coding [http://en.wikipedia.org/wiki/Huffman_coding] and base 36 integers [http://en.wikipedia.org/wiki/Base_36] to create such ID.

Identifier is a Ruby unique identifier generator that wraps the UNIX, Linux and Macintosh 'uuid' library.

Compression and packing methods for singular and collection IDs and UUIDs.