Generate random MAC addresses in a valid format for testing and lab work. A MAC address is the hardware identifier on a network interface, written as six pairs of hexadecimal digits, and you often need realistic-looking ones when writing tests, populating a network simulation, or seeding a database without using real device addresses. This generator produces properly formatted addresses and lets you choose the separator (colon or hyphen) and whether the letters are uppercase or lowercase to match your environment. Generate a single address or a batch, and copy the whole list with one click. Everything runs locally in your browser, so these test values are created instantly on your device with nothing sent to any server.
Yes. Each address follows the standard six-group hexadecimal MAC format, so it is valid for testing and lab use.
Yes. You choose the separator, such as colon or hyphen, and whether the hex is upper or lower case.
Yes. Produce a single address or a batch of them for populating test environments.
Generate random MAC addresses in a valid format for testing and lab work. A MAC address is the hardware identifier on a network interface, written as six pairs of hexadecimal digits, and you often need realistic-looking ones when writing tests, populating a network simulation, or seeding a database without using real device addresses.
Yes. MAC Address Generator is completely free, with no sign-up and no usage limits.
Yes. MAC Address Generator runs in any modern web browser. There is nothing to download or install.
Yes. MAC Address Generator runs entirely on your device in your browser, so nothing you enter is uploaded to a server.
Link this tool from a README, doc or site. The badge links back to this page.
[](https://yourhack.ai/mac-address-generator)