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MAC Address Generator

Generate random MAC addresses with your choice of separator and case.

Free browser toolRuns in your browserNo sign-up

Addresses are random and generated locally, ideal for testing and documentation.

About the MAC Address Generator

A MAC address is a 48-bit hardware identifier, usually shown as six pairs of hexadecimal digits. They are useful as sample data for network testing and documentation.

This tool generates random MAC addresses with your preferred separator and case, entirely in your browser.

Because they are random, they are ideal for examples and tests rather than identifying real hardware.

Key features

  • Colon or hyphen separators
  • Upper or lower case output
  • Bulk generation
  • Local, private generation

How to use

  1. 1Choose a separator and case, and how many addresses you need.
  2. 2Click Generate.
  3. 3Copy the addresses for your tests or docs.

Examples

Generate MAC test data
Input: 2 uppercase colon-separated addresses
Output: Two random six-byte MAC-format values

The values are placeholders and are not guaranteed to identify real hardware.

Frequently asked questions

Are these valid MAC addresses?
They follow the correct 48-bit six-octet format, so they are structurally valid, but they are random and not tied to any real network card.
What separator should I use?
Colons (AA:BB:CC:DD:EE:FF) are most common on Linux and macOS; hyphens are common on Windows. Pick whichever matches your context.
Can I generate several at once?
Yes. Set how many you need and they are generated together.

Continue your workflow

Open a related tool to prepare your files or refine the finished result.