🆔 UUID Generator

Generate universally unique identifiers (UUID v4) using your browser's cryptographic random generator — singly or in bulk for test data and databases.

How many

UUIDs

How to use the UUID Generator

Choose how many UUIDs you need (up to 100).
Click Generate.
Copy one or all of them.

🔒 Privacy first: this tool runs entirely in your browser. Your files and text are never uploaded to any server.

Frequently asked questions

What is a UUID v4?

A 128-bit identifier generated from random data, like 550e8400-e29b-41d4-a716-446655440000. The chance of two ever colliding is astronomically small, so they're safe as database keys and request IDs.

Are these UUIDs truly random?

Yes — they're generated with crypto.randomUUID(), your browser's cryptographically secure random source, entirely on your device.