UUID1 Generator
Generate time-based UUIDs with MAC address
IDUUID6 Generator
Generate time-ordered UUIDs (reordered v1)
UUID6
Click 'Generate' to create your first UUID6
About UUID6 Generator
UUID6 (Universally Unique Identifier version 6) generates time-ordered identifiers with improved structure and compatibility compared to UUID1. This version provides natural chronological sorting while addressing the structural limitations of UUID1, making it ideal for modern distributed systems requiring time-based ordering.
Generate UUID6 identifiers with reordered timestamp fields that provide better database performance and natural sorting capabilities. The tool maintains MAC address-based node identifiers and clock sequence values for guaranteed uniqueness while improving upon UUID1's timestamp organization for better indexing performance.
Perfect for modern distributed systems requiring time-ordered identifiers, high-performance database applications, event logging with optimized indexing, and systems where chronological ordering with improved database performance is critical. Ideal for microservices, logging systems, and distributed databases requiring efficient time-based queries.
UUID6 provides all the benefits of time-based generation with improved structural organization that enhances database performance and indexing efficiency. The natural chronological ordering combined with optimized timestamp structure makes it excellent for high-performance applications requiring time-based identifiers.
Key Features
- Improved time-based generation structure
- Natural chronological ordering
- Enhanced database performance
- MAC address-based uniqueness
- Better indexing efficiency than UUID1
- Modern distributed systems compatibility
UUID6 Frequently Asked Questions
What are the advantages of UUID6 over UUID1?
UUID6 reorders the timestamp fields for better database performance and natural sorting. It provides the same uniqueness guarantees as UUID1 but with improved indexing efficiency and chronological ordering.
Does UUID6 have the same privacy concerns as UUID1?
Yes, UUID6 still includes MAC address information like UUID1, which can raise privacy concerns. Consider using random node values or UUID7 if privacy is important for your application.
Is UUID6 widely supported?
UUID6 is a newer specification and may have limited support in older systems or libraries. Check your environment's compatibility before adopting UUID6 for production applications.
When should I use UUID6 instead of UUID4 or UUID7?
Use UUID6 when you need time-ordered identifiers with better database performance than UUID1, but your system doesn't support the newer UUID7 specification. UUID6 provides a good balance of time-ordering and improved structure.
Can I sort UUID6 values chronologically?
Yes, UUID6 is designed for natural chronological sorting. The reordered timestamp fields allow for efficient time-based queries and sorting without additional processing.
UUID6 Best Practices
- Verify library support before implementing UUID6
- Use UUID6 for systems requiring time-ordered identifiers
- Consider privacy implications of MAC address inclusion
- Test database performance improvements over UUID1
- Document timestamp precision requirements for your use case
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