Generate random MAC addresses instantly. Choose formats (colon, hyphen, dot), specify OUI prefix, and bulk generate. 100% client-side.
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A MAC (Media Access Control) address is a unique identifier assigned to network interfaces. This tool generates random MAC addresses for testing, development, and network configuration purposes. All generation happens in your browser — no data is sent to any server.
A MAC address is a 48-bit unique identifier assigned to network interface cards (NICs). It consists of 6 groups of 2 hexadecimal digits, typically displayed as XX:XX:XX:XX:XX:XX.
OUI (Organizationally Unique Identifier) is the first 3 bytes of a MAC address that identifies the manufacturer. For example, 00:1A:2B might belong to a specific hardware vendor.
These are randomly generated addresses for testing and development purposes. They may or may not match real-world assigned addresses. Do not use them in production networks without verification.