MAC Address Formatter

Paste a MAC address in any notation and get it back in the one you need. Colon-separated (00:1A:2B:3C:4D:5E), hyphen-separated (00-1A-2B-3C-4D-5E), Cisco dotted (001A.2B3C.4D5E), or bare hex (001A2B3C4D5E), in upper or lower case.

Everything that isn't a hex digit is ignored on input, so you can paste straight out of a CLI, a spreadsheet, or a label without cleaning it up first. Copy the result with one click. Runs entirely in the browser — nothing is sent anywhere.