π² Cryptographically Secure UUID v4 Generator
UUID / GUID Generator (v4)
Generate bulk, cryptographically random Version-4 UUIDs and GUIDs instantly with custom formatting options.
π‘ What is UUID v4?
128-Bit Cryptographic Randomness
A UUID is a 128-bit identifier defined by RFC 4122. Version 4 utilizes cryptographically strong pseudo-random numbers to guarantee near-zero chance of collision.
Zero Collision Probability
With 2^122 possible combinations, even if you generated 1 billion UUIDs per second for 85 years, the chance of a single duplicate is negligible.
β Frequently Asked Questions
What is the difference between UUID and GUID?
GUID is Microsoft's implementation of the standard UUID (RFC 4122). Structurally and mathematically they are identical.