Bulk MAC Address Formatter
Convert multiple MAC addresses at once. Paste from switch exports, spreadsheets, or any source — one MAC per line.
Formatted MAC addresses will appear here...
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Bulk MAC Address Conversion
This tool converts multiple MAC addresses at once, making it perfect for network administrators who need to standardize MAC address formats from different sources like switch exports, DHCP logs, or inventory spreadsheets.
Supported Input Formats
Paste MAC addresses in any format — the tool automatically detects and converts them:
- AA:BB:CC:DD:EE:FF (colon separated)
- AA-BB-CC-DD-EE-FF (hyphen separated)
- aabb.ccdd.eeff (Cisco format)
- AABBCCDDEEFF (no separator)
Common Use Cases
- Switch MAC Table Export — Convert Cisco format to colon format for inventory
- DHCP Server Logs — Standardize formats for database import
- Network Inventory — Normalize MAC addresses across different vendors
- Access Control Lists — Format MACs for firewall or NAC rules
Invalid MAC Detection
The tool identifies and marks invalid MAC addresses (those that don't have exactly 12 hex characters) so you can quickly spot data issues in your exports.