UUID v4 is randomly generated (as opposed to v1 which is time-based). It has 122 bits of randomness, making collisions essentially impossible.

Yes. We use the Web Crypto API (crypto.randomUUID), the same source used for cryptographic operations.

UUID Generator

Generate cryptographically random v4 UUIDs instantly.

How many?

927fa91f-926f-4da3-ad3e-3de06a09a96d

About the UUID Generator

UUIDs (Universally Unique Identifiers) are used as database primary keys, request IDs, file names, and more. Our generator uses the browser's built-in `crypto.randomUUID()` to produce cryptographically secure v4 UUIDs.

How to use the UUID Generator

Click Generate to produce a new UUID.
Click the copy icon to copy it to your clipboard.
Use the bulk option to generate up to 100 UUIDs at once.

Frequently Asked Questions

What is UUID v4?: UUID v4 is randomly generated (as opposed to v1 which is time-based). It has 122 bits of randomness, making collisions essentially impossible.
Is it truly random?: Yes. We use the Web Crypto API (crypto.randomUUID), the same source used for cryptographic operations.