MAC Address Generator
How to Generate MAC Addresses Locally on your Mac
MAC addresses are useful in test data, network examples and device simulations. CodeSwissKnife generates and formats MAC addresses locally with explicit control over important address bits.
Why generate MAC addresses locally?
Test identifiers and network examples can reveal infrastructure context. Local generation keeps those values in your workspace.
Control the first octet correctly
The locally-administered and multicast bits are explicit, so generated addresses do not accidentally claim the wrong type.
Respect vendor OUIs
When a vendor OUI is chosen, CodeSwissKnife keeps it byte for byte and disables flag toggles that would rewrite the registered prefix.
Use MAC Address Generator on macOS
Download CodeSwissKnife to keep this network workflow and the rest of your developer tools in one native Mac app.