MAC Address Generator
Generate locally administered unicast addresses.
A locally administered MAC address is one you assign yourself rather than one burned in by a manufacturer, marked by a specific bit in the first byte. This generates random unicast addresses in that range, so they cannot collide with any real vendor's allocation.
Your input
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How MAC Address Generator works
What it does
Generate locally administered unicast addresses.
What you get
Random locally administered unicast MAC addresses.
On your device
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What if a check cannot finish?
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MAC Address Generator — frequently asked questions
What makes an address locally administered?
The second-least-significant bit of the first byte is set to 1. That marks the address as assigned locally rather than by the IEEE.
Why not just make up any MAC address?
A random address could duplicate a real vendor's allocation and collide on a network. The locally administered range exists precisely to avoid that.
What are these addresses used for?
Virtual machine interfaces, container networking, lab setups and testing — anywhere you need a unique address without a physical card.