MAC Address Generator
Random MACs with correct local, unicast and multicast flag bits.
“Locally administered” sets the second-least-significant bit of the first octet (as random MAC features on phones do); “global unicast” clears it, and “multicast” sets the lowest bit.
How to use the MAC Address tool
- Enter your mac address in the fields above.
- Adjust any slider or type an exact number — the answer updates as you go.
- Copy the result and close the tab. Nothing you entered was sent anywhere.
About the MAC Address tool
Generates random MAC addresses in colon, hyphen, Cisco-dotted or bare formats, with the universal/local and group/individual bits set correctly for each mode.
Locally-administered random MACs — what phones use for Wi-Fi privacy — set the U/L bit; the tool reproduces that convention so addresses look right to other software.
Everything runs locally in your browser: no data is uploaded, no account is needed, and it works offline once the page has loaded.
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