MAC Address Converter Tool

How to Use the MAC Address Converter

Paste one MAC address per line, in any mix of formats — colons, dashes, dots, spaces or none at all. Choose the output format, tick upper case if you need it, then click Convert and copy the results straight into your switch, controller, Cisco ISE, Catalyst Center or CSV import.

Any line that isn't exactly 12 hexadecimal characters is flagged in red, so typos are easy to spot.

MAC Address Formats Explained

Colon (aa:bb:cc:dd:ee:ff): used by Cisco wireless controllers, Meraki, Linux and macOS.
Dash (aa-bb-cc-dd-ee-ff): used by Windows and many device labels.
Cisco dotted (aabb.ccdd.eeff): used by Cisco IOS and IOS XE switches and routers.
Plain (aabbccddeeff): used by some databases, spreadsheets and import tools.

MAC Address Converter: FAQs

What Is a MAC Address Converter?

A MAC address converter changes MAC addresses from one written format to another, for example from colon-separated to Cisco dotted, so they can be pasted into a switch, controller, ISE or a CSV import without retyping.

What MAC Address Formats Does Cisco Use?

Cisco IOS and IOS XE switches show MAC addresses in dotted format with three groups of four hexadecimal characters (aabb.ccdd.eeff). Cisco wireless controllers, Meraki and many other tools use colon-separated pairs (aa:bb:cc:dd:ee:ff).

Can I Convert Many MAC Addresses at Once?

Yes. Paste one MAC address per line, in any mix of formats, choose the output format and click Convert. Lines that are not 12 hexadecimal characters are flagged so you can fix them.

Is My Data Sent Anywhere?

No. The conversion runs in your browser, so the MAC addresses you paste are not uploaded or stored.