UUID Generator

Generate random version-4 UUIDs — one or many at once — and copy them with a click. Everything runs in your browser.

How many

What is a UUID?

A UUID (Universally Unique Identifier) is a 128-bit value used as a practically-unique ID for database rows, files, API keys and more. Version 4 UUIDs are randomly generated.

FAQ

Are they truly unique? Collisions are astronomically unlikely — v4 UUIDs have 122 random bits.

Is it private? Yes — UUIDs are generated locally using your browser’s secure random generator.