Fake MAC Address Generator

Summary

Generate random MAC addresses in colon, hyphen, or Cisco dotted format with optional vendor OUI presets.

How it works

1. Select a format: colon (AA:BB:CC:DD:EE:FF), hyphen (AA-BB-CC-DD-EE-FF), or Cisco dotted (AABB.CCDD.EEFF).
2. Optionally pick a vendor OUI preset to fix the first three octets to a known manufacturer prefix.
3. Choose how many addresses to generate (1–100).
4. Click "Generate" — random bytes fill the remaining octets.
5. Copy individual addresses or export all results at once.

Use cases

• Populate test databases with realistic-looking network device records.
• Simulate network topologies in lab or CI environments.
• Test MAC address validation regex or parsing logic in your code.
• Fill UI mockups with plausible hardware identifiers.
• Generate bulk addresses for load-testing network management software.
• Create dummy ARP tables or DHCP lease files for documentation.

Frequently Asked Questions