UUID Generator
Generate random v4 UUIDs instantly. All generation happens in your browser.
How to Use
- 1Set the number of UUIDs you want to generate.
- 2Choose your preferred format options such as uppercase or hyphens.
- 3Click Generate to create the UUIDs.
- 4Copy individual UUIDs or the entire list to your clipboard.
Frequently Asked Questions
What is a UUID and when should I use one?
A UUID (Universally Unique Identifier) is a 128-bit label that is practically guaranteed to be unique across all systems. Use them as database primary keys, distributed system identifiers, or any scenario where you need a collision-free ID without a central authority.
Are UUIDs generated here truly random?
Yes. This tool uses the Web Crypto API, which provides cryptographically secure random values, to generate version 4 UUIDs.
Can two UUIDs ever be the same?
Theoretically yes, but the probability is astronomically low. With version 4 UUIDs you would need to generate about 2.71 quintillion IDs before a 50% chance of a single collision.