MAC Address Generator

Generate random MAC addresses with custom formats.

Runs in your browser — your data never leaves your device

Generator Options

Number of MACs to Generate

OUI Prefix (Optional)

Delimiter

Colon (00:1A:..)

Hyphen (00-1A-..)

None (001A..)

Case

Uppercase

Generate random MAC addresses for network testing, virtual machine configuration, and development environments. Customize the prefix, delimiter, case, and quantity to match your requirements.

What is a MAC Address?

A MAC (Media Access Control) address is a unique 12-character hexadecimal identifier assigned to network interfaces for communication at the data link layer. The first 6 characters represent the OUI (Organizationally Unique Identifier) assigned to the hardware manufacturer, while the remaining 6 characters are assigned by the manufacturer to uniquely identify each device. MAC addresses are used in Ethernet and WiFi networks for frame routing.

When to Generate MAC Addresses

Generated MAC addresses are useful for setting up virtual machines, testing network configurations, and developing software that interacts with network hardware. The prefix option lets you simulate a specific vendor's devices. Different operating systems and network equipment expect different delimiter formats, so the format selector ensures compatibility with your target system.

Frequently Asked Questions

What is a MAC address generator?

A MAC address generator creates random 48-bit Media Access Control addresses used in network interfaces, with options for custom OUI prefixes and different formatting styles.

How do I generate a MAC address?

Click generate to get a random MAC address, or customize the OUI prefix and separator format (colon-separated, dash-separated, or no separator). The tool generates valid MAC addresses instantly.

What is a MAC address used for?

MAC addresses uniquely identify network interfaces at the data link layer. They're used in network administration, device management, MAC filtering, and network debugging.

Are the generated MAC addresses valid?

Yes, the tool generates properly formatted 48-bit MAC addresses with valid hex digits. You can optionally specify an OUI prefix to match a specific vendor.

Is this tool free?

Yes, ToolDock's MAC address generator is completely free, requires no signup, and runs entirely in your browser.

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API Usage

What is a MAC Address?

When to Generate MAC Addresses

Frequently Asked Questions

What is a MAC address generator?

How do I generate a MAC address?

What is a MAC address used for?

Are the generated MAC addresses valid?

Is this tool free?

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API Usage

What is a MAC Address?

When to Generate MAC Addresses