UUID Generator
Generate version-4 UUIDs in your browser using the Web Crypto API.
3883ee72-3794-459e-8d39-4de0779c3695
Runs in your browser. Your input is not uploaded to PayloadIQ.
A version-4 UUID is a 128-bit identifier whose bits are essentially all random, written as 36 characters in the familiar xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx shape. This tool builds each one with crypto.randomUUID(), which draws from the same cryptographically strong random source the browser uses elsewhere — so you can paste them straight into seed data, test fixtures, or new database rows.
Practical tip: v4 UUIDs are random, not ordered, so using them as a primary key can fragment a B-tree index and hurt insert performance on large tables. When ordering or locality matters, reach for a time-sortable scheme such as UUIDv7 or ULID instead.