MAC Address Lookup
Vendor (OUI 00:50:56): VMware, Inc.
Colon: 00:50:56:C0:00:08
Hyphen: 00-50-56-C0-00-08
Dot: 0050.56C0.0008
OUI vendor table is a curated subset of the IEEE registry; unknown prefixes report as unlisted. 100% client-side.
MAC Address Lookup — Free Online Tool
Validates a MAC/EUI-48 address, normalizes it between colon, hyphen, dot, and unseparated notations, and looks up the Organizationally Unique Identifier (OUI) vendor from a built-in table — useful for network debugging, identifying device manufacturers, and linting interface addresses in inventory data.
How to use the MAC Address Lookup
- Open the tool above — it runs entirely in your browser, so your input never leaves this page.
- Paste or type your input into the field, then press the relevant button (e.g. Encode / Decode, Generate, or Convert).
- Copy the result from the output area with the copy button orCtrl/Cmd + C.
- No signup, no upload, and no tracking — repeat as often as you need.
Frequently asked questions
Is the MAC Address Lookup free to use?
Yes. The MAC Address Lookup is completely free, with no signup, no ads inside the tool, and no hidden limits.
Does the MAC Address Lookup upload my data?
No. The MAC Address Lookup processes everything locally in your browser. Your input is never sent to a server, so it stays private even on shared devices.
Does the MAC Address Lookup work offline?
After the page loads, the MAC Address Lookup runs entirely in your browser, so it keeps working without a network connection.
Free & private — why use this MAC Address Lookup
The MAC Address Lookup runs 100% client-side in your browser. Your data is never uploaded to a server, no account is required, and the tool is completely free. It works offline once the page has loaded and is part of a growing collection of privacy-first developer utilities.