Generate RFC 4122 Version 1 time-based unique identifiers with hardware node breakdown.
Execution runs 100% locally inside the browser sandbox using HTML5 Canvas, Web Cryptography Subtle API, and Web Workers. Zero egress.
Zero network latency. Operates completely offline with zero dependencies on third-party backend servers or cloud services.
Built according to official RFC specifications, cryptographic test vectors, and enterprise-grade data transformation standards.
Click Regenerate to create a fresh time-based UUID.
View the embedded UTC timestamp, node MAC hash, and clock sequence.
Copy the UUID or generate batch lists of up to 100 UUIDs.
UUID v1 is time-ordered and contains an embedded timestamp, whereas UUID v4 is completely random.
Yes, the hardware node is generated with a multicast bit via Web Crypto CSPRNG to prevent device fingerprinting.
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