UUID v1 Generator
A time-based UUID generated using timestamp and MAC address, containing time-series order information. Suitable for logging, event tracking, and applications requiring time-series order.
UUID Tool Categories
UUID v4 Generator
A UUID generated using random numbers, with global uniqueness and no identifiable information. The most commonly used type, suitable for API keys, session IDs, and secure identifiers.
UUID v7 Generator
A modern timestamp-based UUID standard combining time-series order and randomness, providing better database indexing performance for distributed systems.
UUID nil Generator
A special UUID with all bytes set to 0, used to represent empty values or uninitialized states. Suitable for database design and API development.
Online UUID Generator Tool
A UUID is a universally unique identifier generated from completely random numbers, with an extremely low chance of duplication, ensuring near-global uniqueness.