Universally unique identifier ... A universally unique identifier (UUID) is a 128-bit number designed to be a unique identifier for objects in computer systems. UUIDs are designed to be large enough that any …

Quickly and easily generate individual or bulk sets of universally unique identifiers (UUIDs).

Aug 18, 2025 · UUID is a unique identifier defined by the IETF standard, whereas GUID is a unique identifier defined by Microsoft. UUID was introduced as part of the Open Software Foundation standard.

UUID stands for Universally Unique Identifier (sometimes called "GUID" or "Globally Unique Identifiers"). UUIDs are 36 character strings containing numbers, letters and dashes. UUIDs are designed to be …

This module provides immutable UUID objects (the UUID class) and functions for generating UUIDs corresponding to a specific UUID version as specified in RFC 9562 (which supersedes RFC 4122), …

Feb 17, 2025 · Learn how to generate, format, and use UUIDs using standard libraries and best practices. Ready to put this knowledge into practice? Try our UUID generators: This definitive 2025 …

Jul 11, 2025 · A Universally Unique Identifier (UUID) is a label used to uniquely identify a resource among all other resources of that type. Computer systems generate UUIDs locally using very large …

In summary, a UUID is a randomly generated unique identifier widely used in applications to ensure the uniqueness of element identification. Developers use UUIDs for various purposes such as database …

Free online UUID generator tool. Generate UUID v1, v4, v7, GUID, and Nil UUID instantly. Copy to clipboard, bulk generation, and download as TXT file. RFC 4122 compliant.

Jul 3, 2024 · There are four types of UUIDs, each with a different generation algorithm: Version 1 (Date-time based): Uses the system clock and a node ID to generate a UUID. Version 3 (Name-based, …