Bulk MAC Address Generator
Generate MAC addresses in bulk for testing.
Network hardware identifiers
A MAC address is the identifier assigned to a network interface, used to distinguish devices on a network. This generates MAC addresses in bulk, useful for testing, simulation and development work involving networking.
Set a quantity to generate MAC addresses.
Format, and legitimate uses
A MAC address has a specific format — six pairs of hexadecimal digits — and part of it traditionally identifies the manufacturer of the hardware, which is why real addresses are not entirely random. Generated addresses are for testing and development: populating a test environment, simulating many devices, or validating software that handles network identifiers, where you need many correctly-formatted addresses without real hardware. It is worth noting these generated addresses are for such legitimate development purposes, not for impersonating real devices on a network. For anyone building or testing networking software, having a supply of properly-formatted MAC addresses on demand is a practical convenience that saves manually constructing them to the right pattern, which is fiddly and easy to get wrong given the hexadecimal format and its conventions.
Common questions
What is a MAC address?
The identifier assigned to a network interface to distinguish devices on a network, written as six pairs of hexadecimal digits.
What are generated MAC addresses for?
Testing and development — populating test environments, simulating devices, or validating networking software, rather than impersonating real devices.
Is anything uploaded?
No. The addresses are generated in your browser.