MAC Address Generator
Generate random, properly formatted Media Access Control (MAC) addresses for testing and network configuration.
MAC Address Generator
Output
How to generate test MAC addresses
Generate random, properly formatted MAC addresses for testing, documentation, or network configuration.
What makes an address valid-looking
A MAC address is 6 bytes (48 bits). This generator sets the first byte's low two bits so every address is a unicast, locally-administered address — the same convention tools like Docker and VirtualBox use for generated addresses — instead of occasionally producing an invalid multicast address or colliding with a real vendor's assigned range.
How to use it
- Choose how many addresses to generate (up to 1000).
- Pick a separator style: colons, dashes, or none.
- Pick uppercase or lowercase hex digits, then Generate.
Typical uses
Populating test fixtures, filling in sample network documentation, or generating placeholder identifiers for lab and CI environments where a real hardware address isn't available or shouldn't be used.
Privacy
Runs locally in your browser. No data is sent to the server.
FAQ
Could these collide with a real device's MAC address?
It's extremely unlikely given the address space, and the locally-administered bit is set specifically so generated addresses are never mistaken for a real vendor-assigned (OUI) address.
What formats are supported?
Colon-separated (XX:XX:XX:XX:XX:XX), dash-separated (XX-XX-XX-XX-XX-XX), and plain (XXXXXXXXXXXX), in upper or lower case.
Why is 1000 the maximum?
It's a practical cap to keep generation and copying fast; run the generator again for more.