UUID v1 Generator Online

Online tool for generating version 1 UUIDs

About UUID v1

UUID (Universally Unique Identifier) is a 128-bit number used to identify information in computer systems. It's also known as GUID (Globally Unique Identifier)

A version 1 UUID isgenerated from a time and a node id (usually the MAC address).

This tool allows you to UUID v1 with following options:

  • Number of Generated UUIDs: How many UUIDs will be generated.
  • Node: The node ID. You need to enter 12 hex digits. If not specified, it will use randomly generated ID.
  • Clock seq.: RFC clock sequence (0 ~ 16383). If not specified, an internally maintained clockseq is used.
  • Time: Time in milliseconds since unix Epoch. If not specified, current time will be used by default.
  • Additional time: Additional time (0 ~ 9999). If not specified, it will be ignored.

Number of Generated UUIDs: 1
Node: 001122aabbcc
Clock Seq.: 10
Time: 1000000
Additional Time: 500