What does this tool do?
The MAC Address Formatter rewrites a MAC address into every common notation: colon, hyphen, Cisco dot and bare. A case toggle lets you match the exact style you need. It all runs in your browser.
How to use it
- Enter an address, domain or value.
- View the results instantly.
- Copy the details you need.
How it works
The tool strips your input down to its 12 hex characters and then regroups them for each format. For example 00:1A:2B:3C:4D:5E becomes 00-1A-2B-3C-4D-5E with hyphens, 001a.2b3c.4d5e in Cisco dot notation, and 001A2B3C4D5E bare. The case toggle instantly switches every hex output between upper and lower case.
Common use cases
Different vendors write MACs differently: Windows favors hyphens, Linux uses colons and Cisco IOS uses dot notation. This tool quickly converts an address you copied from one device into the format expected by switch port-security, a DHCP reservation or a MAC filtering config.
Frequently asked questions
What is Cisco dot notation?
Cisco IOS splits a MAC into three groups of four hex characters separated by dots, for example 001a.2b3c.4d5e. This tool converts the standard colon format into that Cisco representation.
Do separators or spaces in the input cause problems?
No. The tool ignores all separators such as colons, hyphens, dots and spaces and keeps only the 12 hex characters, so messy formatting during copy-paste does not matter.
Is MAC Address Formatter free?
Yes. MAC Address Formatter and all 300+ tools on MagmaNex are completely free with no signup or account required.
Is my data safe?
Yes. Everything runs locally in your browser. The data you enter is never sent to a server, stored, or shared.
Does it work on mobile?
Yes. MAC Address Formatter works on phones, tablets and desktops — no app download needed.
🔒 Privacy: everything runs in your browser, your data is never sent to a server.