UUID/GUID Generator
UUID/GUID
Free UUID v4 generator
Formula
UUID v4: random 128-bit identifier. Format: 8-4-4-4-12 hex digits
Frequently Asked Questions
What is a UUID?
Universally Unique Identifier — a 128-bit identifier formatted as 32 hex digits in 5 groups: 8-4-4-4-12. UUID v4 uses random generation.
Can UUIDs collide?
Theoretically yes, but the probability is astronomically low — you would need to generate 2.71×10¹⁸ UUIDs for a 50% chance of one collision.