MAC Address Generator

Generate random MAC addresses

Generate random MAC addresses for testing and development. Create valid unicast or multicast MAC addresses. Free MAC generator.

Quantity (5)

Separator

OUI Prefix (optional)

UppercaseUnicast onlyLocally administered

Generated MAC Addresses (5)

3C:1F:23:CA:75:85D4:34:4D:73:CE:499C:45:8D:FB:BD:F2AC:A5:60:70:86:2D2C:48:5C:36:14:EF

About MAC Addresses

Unicast vs Multicast: Bit 0 of the first byte. 0 = unicast, 1 = multicast.

Universal vs Local: Bit 1 of the first byte. 0 = universally administered (real hardware), 1 = locally administered (software-defined).

OUI: First 3 bytes identify the manufacturer (Organizationally Unique Identifier).