MAC Address Formatter: Convert Colon, Hyphen, Dot and Plain Formats
Convert MAC addresses between colon, hyphen, Cisco dot and no-separator formats, in upper or lower case. Many at once.
Paste MAC addresses in any format, one per line or separated by commas, and pick the output style you need: 00:1A:2B:3C:4D:5E, 00-1A-2B-3C-4D-5E, 001a.2b3c.4d5e or 001A2B3C4D5E.
What it does
- Reads colons, hyphens, Cisco dots, no separator, and groups written with one digit.
- Writes the style you choose in capital or small letters.
- Can show whether each address is unicast or group, and globally unique or locally administered (often a randomized phone MAC).
- Handles up to 20,000 addresses and flags every line it cannot read.
Example
Before
001a.2b3c.4d5eAfter
00:1A:2B:3C:4D:5EFrequently asked questions
- Why do phones show a different MAC address on each network?
- Many phones and computers now use a private, randomized address per Wi-Fi network. These have the locally administered bit set, which the info option shows.
- Can it tell me the manufacturer?
- No. That needs a large list of vendor codes. This tool only formats addresses, which keeps it small and private.
- Which format does my router want?
- Most routers accept colons or hyphens. Cisco devices usually use the dotted form. If a router rejects one style, try another.
- Is my list uploaded?
- No. It stays in your browser.
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