MAC Address Generator
Generate random, valid MAC addresses instantly. Choose unicast or multicast, and output in colon, hyphen or Cisco dot notation. Perfect for testing, virtualization and development.
It is completely free, private and requires no signup.
The prefix tells you how many bits are network vs host.
Network and broadcast addresses are never usable by hosts.
Leave headroom when dividing subnets for future devices.
How it works
Generate random, valid MAC addresses instantly. Choose unicast or multicast, and output in colon, hyphen or Cisco dot notation. Perfect for testing, virtualization and development.
Pick unicast or multicast and your preferred format.
Generate one or many, then copy with a click.
Examples & Data
| Format | Example |
|---|---|
| Colon | 3a:4f:8c:12:7b:e9 |
| Hyphen | 3A-4F-8C-12-7B-E9 |
| Cisco | 3a4f.8c12.7be9 |
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It is completely free, private and requires no signup.
Use the tool nowFrequently Asked Questions
A unique 48-bit identifier assigned to network interfaces for communication on a local network.
The least significant bit of the first byte distinguishes them: unicast sends to one node, multicast to a group.
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