MAC Address Lookup
Looks up the manufacturer behind a MAC address's OUI prefix and decodes the address itself: unicast/multicast bit, locally-administered bit, and the notation variants (colon, dash, Cisco dotted).
Runs 100% in your browser — nothing you paste leaves your device.
Read the full guide to this tool
Notes
- The vendor lookup queries the public maclookup.app API from your browser; the bit analysis is fully local.
- Randomized Wi-Fi privacy addresses set the locally-administered bit — those never resolve to a vendor.
- Runs 100% in your browser — nothing you paste leaves your device.
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