Bulk UUID / GUID Generator
Create cryptographically secure UUID v4 or time-based UUID v1 identifiers in bulk.
Generation Settings
UUID Version 4 (Random)
Generated using cryptographically secure random values (CSPrng) where all bits are random except for version and variant flags.
Frequently Asked Questions
What is the difference between UUID v1 and v4?
UUID v4 is entirely random, making it highly secure and the industry standard for databases. UUID v1 is generated using the host timestamp and node address, which helps trace chronological sequence but contains timestamp trace metadata.
Are these UUIDs collision-free?
Yes, for all practical database scaling needs. A UUID v4 has 122 bits of entropy, which means you would need to generate billions of UUIDs per second for hundreds of years to have even a tiny probability of a collision.