Skip to content

UUID Generator

Generate, validate, and inspect universally unique identifiers

Time-based

UUID V1

2e774f90-c6d9-11f1-88ba-19210f6dfd46
Random

UUID V4

e3d5f4a1-f71f-4d13-82ce-24563241b398
Name-based

UUID V5

feb30f41-beed-5ea5-a55b-7269b95b5c3b

Batch Generator

Version

UUID Validator

Paste a UUID to check if it's valid and identify its version.

UUID Versions Explained

Version 1

Uses the current timestamp and MAC address. Guarantees uniqueness but may expose hardware identity.

Version 4

Purely random. The most commonly used version — simple, private, and virtually zero collision probability.

Version 5

Derived from a namespace + name using SHA-1. Deterministic: the same inputs always produce the same UUID.