UUID Generator

How to Use

1. Choose how many UUIDs you want to generate (between 1 and 100).
2. Optionally enable Uppercase or Without hyphens.
3. Click Generate to create random UUID v4 values.
4. Use Copy all to copy the generated list to your clipboard.

Technical notes

UUIDs are generated according to the version 4 (random) variant described in RFC 4122. When available, the generator uses crypto.getRandomValues for high-quality random values, and falls back to Math.random only in older environments. This makes the generated UUIDs suitable for identifiers in many applications, but not as cryptographic keys.

All UUIDs are generated locally in your browser using the Web Crypto API when available. No data is sent to any server.