MAC Address Validator
Validate a MAC address, normalize it to standard form, and inspect multicast and local-administration flags.
MAC Address Validator tool
Accepted formats: AA:BB:CC:DD:EE:FF, AA-BB-CC-DD-EE-FF, or AABBCCDDEEFF.
| Metric | Value |
|---|
Privacy: validation runs locally in your browser. No MAC addresses are stored or transmitted.
This page strips separators, checks that the value contains exactly 12 hexadecimal digits, normalizes it to uppercase colon-separated form, and inspects the first octet flags.
Examples
- 02:1A:2B:3C:4D:5E → valid, locally administered, unicast
- 01-00-5E-00-00-FB → valid, multicast
- AABBCCDDEEFF → valid, normalized to AA:BB:CC:DD:EE:FF
FAQ
- What formats does this validator support?
It supports common MAC formats such as colon-separated, hyphen-separated, and plain 12-hex-digit input.
- Does it normalize the MAC address?
Yes. Valid input is normalized into a consistent uppercase colon-separated format.
- Can it tell whether a MAC is multicast or locally administered?
Yes. It inspects the first octet and reports those bit flags.
- Is my input stored?
No. Validation runs locally in your browser and nothing is stored or transmitted.