MAC Address Generator
Generate random, valid MAC addresses in bulk. Choose how many you need, the separator (colon, hyphen, dot or none) and the case, and whether to mark them as locally administered. Each address is random and well-formed, ready to copy for testing, virtual machines and lab setups. Everything is generated in your browser.
7E:1C:E4:68:78:5F
EE:5A:A2:F2:D5:A5
FE:F2:D5:A1:7E:B7
5E:0D:8A:ED:E3:22
5A:3F:FD:B4:10:9CHow it works
- 1
Set the count and format
Pick how many addresses you want (1 to 100), the separator style and whether to use uppercase.
- 2
Choose the address type
Leave "Locally administered" on for safe lab and test addresses, which is the convention for software-assigned MACs.
- 3
Copy the list
Use the copy button to grab the whole list, or press Regenerate for a fresh batch.
Instant & 100% private — nothing is uploaded
Everything runs locally in your browser. Your code, text and files are processed on your own device and are never sent to a server — so there are no upload waits, no size limits from us, and nothing is ever stored or logged.
Frequently asked questions
- Are these MAC addresses safe to use?
- For testing, virtual machines and labs, yes. Leaving "Locally administered" on sets the bit that marks an address as software-assigned, which is exactly what you want for MACs that are not tied to a manufacturer. Avoid assigning a random global address that could collide with real hardware.
- What does "locally administered" do?
- It sets a bit in the first octet that tells the network the address was assigned locally rather than burned in by a manufacturer. The tool also clears the multicast bit so the result is always a valid unicast address. This is the standard way to make a private, non-conflicting MAC.
- Which separator should I use?
- It depends on the system. Colons (00:1A:2B:3C:4D:5E) are common on Linux and macOS, hyphens (00-1A-2B-3C-4D-5E) on Windows, and the dotted form (001A.2B3C.4D5E) on Cisco gear. Pick whichever your tool or config file expects, or none for a plain 12-character string.
- Are the addresses random and private?
- Yes. Each address uses your browser cryptographic random generator and is created entirely on your device. Nothing is generated on a server or sent anywhere, so the list is yours alone.
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