UUID Generator
Generate random UUID v4 identifiers instantly.
b6bed7c3-2f45-4790-acc6-e7a2a35aff5d
3ebeb59d-7219-4208-8533-d1d8dfc8f6a6
d7477f34-4ec5-48bc-848f-90e82e4b0d97
1e074dcf-ec26-41cb-94b7-49d039502d3e
6ee69d46-ffec-4527-a9c3-17a5b409c82a
Frequently Asked Questions
What is a UUID?
A UUID (Universally Unique Identifier) is a 128-bit identifier formatted as 32 hex digits in groups: xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx. Version 4 UUIDs are randomly generated.
How unique is a UUID v4?
The probability of generating two identical UUIDs is astronomically small — roughly 1 in 5.3 × 10³⁶. You can safely treat them as unique.
What is the difference between UUID and GUID?
GUID (Globally Unique Identifier) is Microsoft's term for UUID. They are effectively the same thing.