Generate Version 1, 4, and 7 UUIDs for your applications with single and bulk generation options
Format: xxxxxxxx-xxxx-1xxx-xxxx-xxxxxxxxxxxx
Contains: Timestamp + MAC address (or random node)
Pros: Sortable by creation time, guaranteed uniqueness
Cons: May reveal MAC address, privacy concerns
Use case: When you need time-ordered UUIDs and privacy isn't critical
Format: xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx
Contains: Cryptographically secure random numbers
Pros: Maximum privacy, no information leakage
Cons: Not sortable, purely random
Use case: Most common choice, best for general purpose use
Format: xxxxxxxx-xxxx-7xxx-xxxx-xxxxxxxxxxxx
Contains: Timestamp + random data
Pros: Sortable, privacy-friendly, modern standard
Cons: Newer standard (2022), limited support
Use case: When you need sortable UUIDs with privacy protection
Version 1 Privacy: May expose your computer's MAC address. We use random node values instead of real MAC addresses for privacy protection.
Version 4 Security: Uses cryptographically secure random number generation for maximum unpredictability.
Version 7 Benefits: Combines the sortability of V1 with the privacy of V4, making it ideal for modern applications.
RFC 4122 Compliance: All generated UUIDs conform to the official UUID standard.