UUID v1 Generator

Time-based UUID (Timestamp + MAC Address)

Generating...

About

UUID Version 1 is generated using the current timestamp and the MAC address of the network interface. It includes 60 bits of timestamp (100-nanosecond intervals since October 15, 1582), 14 bits of clock sequence, and 48 bits of node identifier (usually the MAC address). This version is useful when you need time-ordered UUIDs that can be sorted chronologically. However, v1 UUIDs may expose MAC addresses, which can be a privacy concern.

Use Cases

  • •Time-ordered database records
  • •Distributed systems requiring chronological ordering
  • •Event logging and audit trails
  • •Time-series data identification
  • •Legacy systems requiring time-based UUIDs

How to Generate

Library

uuid

NPM Package

npm install uuid

Code Example

import { v1 as uuidv1 } from 'uuid';
const id = uuidv1();
console.log(id); // e.g., '6ba7b810-9dad-11d1-80b4-00c04fd430c8'

Note: v1 UUIDs include MAC address information, which may be a privacy concern. Consider v4 or v7 for new applications.