Random MAC Address Generator Online
Generate a random MAC address (configurable format and separator), in your browser.
Generated locally. “Locally administered” sets the proper bit to avoid clashing with vendor MACs.
🔒 100% client-side — no data sent
Generate a random MAC address in the format of your choice (colon, hyphen, upper or lower case) in one click. Perfect for network testing, configuration and datasets. Generation happens 100% in the browser, with no data transmitted.
What is it for?
- ▸ Create test MAC addresses for network software
- ▸ Fill in configuration fields for virtual devices
- ▸ Generate unique identifiers for simulations
- ▸ Pick a format compatible with your tool or system
FAQ
What is a MAC address?
A MAC address is a unique 48-bit hardware identifier assigned to a network interface. It is usually written as six hexadecimal pairs separated by colons or hyphens.
Can I choose the MAC address format?
Yes, the tool lets you select the separator (colon or hyphen) and the case (upper or lower) to match the format your system expects.
Are the generated addresses truly unique?
They are random, so the chance of a collision is very low but not guaranteed to be zero. For real production use, verify uniqueness within your network.