UUID Generator Online for V1
Generate UUID version 1 identifiers compliant with RFC 4122.UUID V1
Contains MAC address
What is a UUID?
UUID (Universally Unique Identifier) is a 128-bit value used to identify information in computer systems. It is a standard format for creating unique identifiers, ensuring that each identifier is unique across different systems and applications. UUIDs are often used in databases, file systems, and other systems to identify and track information.
About UUID version v1
Version 1 UUIDs are time-based identifiers generated from a high-resolution timestamp combined with the node’s MAC address (or a random node ID if privacy is a concern). This makes them unique across space and time but can potentially leak information about the device that created them. They’re defined in RFC 4122.Disclaimer: UUIDs are not cryptographically secure. If you need secure tokens, use a CSPRNG or a library designed for authentication secrets. There is no guarantee of uniqueness for UUIDs generated by this tool.