Tools/Random MAC Address Generator
Networking & Web

Random MAC Address Generator

Generate one or many random MAC addresses for lab environments and test fixtures, with full control over separator and address bits.

Free & unlimitedRuns in your browserNo sign-up required
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How it works

Three steps, no setup

1

Set the options

Choose separator style, unicast or multicast, and local or global scope.

2

Set a quantity

Generate up to 50 addresses in one batch.

3

Copy the list

Ready to drop into test configs or virtual network interfaces.

Common questions

Frequently asked questions

What is the unicast/multicast bit?
It is the least significant bit of the first octet — 0 means the frame is addressed to a single device, 1 means it targets a group of devices.
Are these safe to use on a real network?
They are intended for testing and lab use — always confirm they do not collide with a real device before using them on production hardware.
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