MAC Address Vendor Lookup
Look up the vendor/manufacturer of any MAC address against the IEEE OUI database. Supports all MAC formats. 100% offline.
About MAC Address Vendor Lookup
Look up the vendor/manufacturer of any MAC address against the IEEE OUI database. Supports all MAC formats. 100% offline. Everything runs locally in your browser — your data never leaves your device.
How to use
- Enter your input in the tool above.
- Adjust any options to your preference.
- Use the Copy or Download buttons to save the result.
- Everything happens locally — your data never leaves your browser.
FAQ
What does this tool do?
Look up the vendor/manufacturer of any MAC address against the IEEE OUI database. Supports all MAC formats. 100% offline.
Is my data sent to a server?
No. This tool runs 100% in your browser. Nothing is uploaded, tracked, or stored remotely. It works offline as a PWA.
What extra features does this tool have?
Extras: (1) IEEE OUI database (top 500+ vendors bundled), (2) All MAC formats supported (colon, dash, dot, none), (3) Vendor name, address, country, registry (MA-L, MA-M, MA-S, IAB), (4) Locally-administered bit detection (LAM), (5) Multicast bit detection, (6) Universal vs Local classification, (7) Random MAC generator (with optional Apple/Google prefix), (8) Bulk lookup (one MAC per line), (9) Reverse lookup — vendor name → OUI prefixes, (10) Export as CSV/JSON, (11) Copy individual fields, (12) Privacy: all lookups happen locally, no network
Does this work offline?
Yes — install as a PWA and use it without network. All processing happens client-side.
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