NetworkRuns locally · No upload

MAC Address Generator

Create random locally administered MAC addresses with colon, dash, or no separator. Ideal for virtualization, networking labs, and test environments.

Private by design

Everything runs in your browser. Your input is never uploaded, stored, or logged on our servers.

Works offline after load

Separator

Count (max 20)

Uppercase

Generates locally administered, unicast MAC addresses suitable for testing and virtualization.

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Is this tool free?+

Yes. Every Utiliio utility is free with no sign-up, usage limits, or paywalls.

Do you store my data?+

No. Processing happens entirely in your browser. Your input never leaves your device.

Can I use this tool offline?+

Yes. Once the page loads, most tools continue working without an internet connection.