The fastest way to know what's on the wire.
MAC Vendor Lookup identifies the manufacturer behind any MAC address — instantly, offline, and without an account.
Field Capabilities
Smart MAC parsing
Accepts colons, dashes, dots, no separators, or just the first 6 hex chars. Paste anything that looks like a MAC.
Camera scanner
On-device Vision OCR reads MACs from device labels. No cloud round-trip, no images uploaded anywhere.
Scan Session
Walk a closet or rack and capture multiple devices in one sweep. Live preview detection. Save the whole batch.
Bulk paste
Drop in a list from arp -a, a DHCP table, or a CSV. Lookup all of them at once. Export results.
Bit-level decoding
Unicast vs. multicast, U/L bit, randomized/private MAC detection, broadcast, EUI-64 derivation per RFC 4291.
Sessions & tags
Group lookups by site, closet, IDF, or job ticket. Searchable history with notes and favorites.
Shortcuts & Siri
"Look up MAC vendor" works as an App Intent. Spotlight, Shortcuts, voice — all without opening the app.
39,340 OUIs bundled
The full IEEE Registration Authority database ships inside the app. ~2.6 MB. Works offline forever.
No data leaves the lab.
Built private by default.
MAC Vendor Lookup is fully offline. There is no network code in the binary. Your lookups, notes, tags, and camera frames stay on your device.