MAC Address Formatter
Paste a MAC address in almost any style and this tool cleans it up and shows it in every common format at once: colon separated, hyphen separated, Cisco style dot notation with three groups of four, and bare hex with no separators. It accepts input that uses colons, hyphens, dots, spaces or nothing at all, so you do not have to match a specific input shape. This is handy because different systems and vendors insist on different separators, and retyping a twelve digit address by hand is error prone. It validates that you have exactly twelve hexadecimal digits and flags anything that does not fit. Each output is offered in both uppercase and lowercase so you can match your target system exactly. Everything runs locally in your browser, so the hardware address you enter is never uploaded or stored.
How to use MAC Address Formatter
- Paste a MAC address in any format.
- Pick the separator style and letter case.
- Copy the normalized MAC address.
Frequently asked questions
What separators can it output?
It converts a MAC address between colon form, hyphen form, Cisco dot form and bare hex with no separators.
Can it change the letter case?
Yes, you can output the hex digits in uppercase or lowercase to match your device or documentation style.
How long is a valid MAC address?
A standard MAC address is 48 bits, which is 12 hexadecimal digits, regardless of which separator style you display it in.
What is MAC Address Formatter?
Paste a MAC address in almost any style and this tool cleans it up and shows it in every common format at once: colon separated, hyphen separated, Cisco style dot notation with three groups of four, and bare hex with no separators. It accepts input that uses colons, hyphens, dots, spaces or nothing at all, so you do not have to match a specific input shape.
Is MAC Address Formatter free to use?
Yes. MAC Address Formatter is completely free, with no sign-up and no usage limits.
Does MAC Address Formatter work in a web browser?
Yes. MAC Address Formatter runs in any modern web browser. There is nothing to download or install.
Is my data private with MAC Address Formatter?
Yes. MAC Address Formatter runs entirely on your device in your browser, so nothing you enter is uploaded to a server.
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