A MAC address is a six-byte label used by network interfaces on a local link. It is often written as six pairs of hexadecimal digits, like 02:00:00:aa:bb:cc. MAC Address Generator makes example labels; it cannot reserve one on a real network.
Make a local example
Set How many to 2 and type 02:00:00 in Prefix. Choose Generate. You should see two addresses with six pairs each. The first three pairs stay 02:00:00; the remaining pairs are random, so there is no fixed expected address. Change Separator from : to - to change only the writing style. Uppercase changes only the hex letters.
Before using one on a device
A random result is not proof of uniqueness. Two devices on the same network can still clash. This tool does not automatically set the locally administered bit when Prefix is empty or contains another value. If your use case requires a locally administered address, choose and verify the first byte deliberately—for example, 02 in this demonstration. Do not assume a user-supplied vendor prefix gives you permission to impersonate that vendor.
Where your input goes
Processing runs in your browser. The tool does not upload your input to ilham.dev.
Related guide
For more background, read Network Debugging Notes.
Questions you might have
- Can I use a generated MAC on a real network?
- Only after checking your network’s rules and that the result does not clash with another device. The tool does not check the network or set the locally administered bit for you. Choosing an appropriate first byte helps avoid impersonating a vendor, but it is not a collision guarantee.