Random MAC Address Generator & Formatter

MAC Address Generator

Generate random MAC addresses with custom OUI prefixes, type options, and multi-format outputs instantly in your browser.

Generated MAC Formats

Generation Successful
Colon Format (Standard):
00:1A:2B:4F:8C:31
Hyphen Format:
00-1A-2B-4F-8C-31
Cisco Dot Format:
001a.2b4f.8c31
Assigned Vendor / OUI:
Cisco Systems, Inc
Address Type:
Universally Administered (UAA)
Raw Hex String:
001A2B4F8C31

Understanding MAC Address Generation

A MAC address generator produces valid hexadecimal physical addresses for testing network environments, configuring virtual machines, or simulating network interface cards.

Configuration Guidelines

  • UAA vs. LAA: Universally Administered Addresses carry standard IEEE vendor OUI prefixes, while Locally Administered Addresses allow custom overriding for testing.
  • Delimiter Formatting: Output values instantly adapt to colon-separated, hyphenated pairs, or Cisco lowercase dot-notations required by different network utilities.

Privacy & Security Note

All MAC generation and formatting routines execute entirely client-side within your browser environment. Your generated addresses and test parameters are never transmitted or stored externally.