What MAC address formats are supported?

Supports XX:XX:XX:XX:XX:XX (colon), XX-XX-XX-XX-XX-XX (dash), XXXX.XXXX.XXXX (dot), and XXXXXXXXXXXX (no separator) formats.

Are these valid MAC addresses?

These are randomly generated for testing purposes. They follow the correct format but are not assigned to any actual hardware. Do not use in production.

What's a MAC address used for?

MAC (Media Access Control) addresses uniquely identify network interfaces. They're used for network communication at the data link layer.

Can I use these for testing?

Yes! Perfect for testing network device management, MAC filtering logic, hardware inventory systems, and network visualization tools.

Should I use uppercase or lowercase?

MAC addresses are case-insensitive, but many systems display them in uppercase. Choose based on your testing needs.

Are these unicast or multicast?

Our generated MAC addresses are designed to be unicast (the first byte's least significant bit is 0), representing individual device addresses.

Random MAC Address Generator - Create Fake MACs for Testing

About this tool

This tool uses a cryptographically secure pseudo-random number generator (CSPRNG) to ensure fairness and security.

Tip: press Space to generate again.

About Random MAC Address Generator

Generate random MAC addresses for testing and development. Supports colon, dash, dot separators, and no separator formats. Perfect for network testing and hardware simulation. Multiple format options.

How to Use Random MAC Address Generator

1Choose separator style
2Select uppercase or lowercase
3Set how many to generate
4Click 'Generate MACs'
5Use for testing only

Features

Multiple separator formats
Upper/lowercase options
Batch generation
Testing friendly
Valid format

Frequently Asked Questions

What MAC address formats are supported?: Supports XX:XX:XX:XX:XX:XX (colon), XX-XX-XX-XX-XX-XX (dash), XXXX.XXXX.XXXX (dot), and XXXXXXXXXXXX (no separator) formats.
Are these valid MAC addresses?: These are randomly generated for testing purposes. They follow the correct format but are not assigned to any actual hardware. Do not use in production.
What's a MAC address used for?: MAC (Media Access Control) addresses uniquely identify network interfaces. They're used for network communication at the data link layer.
Can I use these for testing?: Yes! Perfect for testing network device management, MAC filtering logic, hardware inventory systems, and network visualization tools.
Should I use uppercase or lowercase?: MAC addresses are case-insensitive, but many systems display them in uppercase. Choose based on your testing needs.
Are these unicast or multicast?: Our generated MAC addresses are designed to be unicast (the first byte's least significant bit is 0), representing individual device addresses.

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Secure & Private

All generation happens locally in your browser using Web Crypto API (CSPRNG). Your data never leaves your device. No tracking, no storage, complete privacy.