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MAC Address Generator

Generate, validate, and format MAC addresses in multiple formats (colon, hyphen, dot, bare). Parse MAC addresses to identify unicast/multicast, local/global flags, and vendor OUI lookup. Batch generate up to 20 addresses and increment MACs. Runs entirely in your browser — your data never leaves your machine.

mac-address network generator oui vendor hardware ethernet

Published June 1, 2026

All interactive tools run entirely in your browser. Your data never leaves your device.

How It Works

Generate random MAC addresses in your preferred format, validate existing addresses, and look up vendor information from OUI prefixes. All processing runs entirely client-side.

Features

  • 4 formats: colon (AA:BB:CC:DD:EE:FF), hyphen (AA-BB-CC-DD-EE-FF), dot (AABB.CCDD.EEFF), bare (AABBCCDDEEFF)
  • Batch generation: generate up to 20 MAC addresses at once
  • MAC parsing: identify unicast/multicast, local/global, OUI bytes
  • Vendor lookup: identify manufacturer from OUI prefix (30+ vendors)
  • Increment: increment a MAC address by any amount with carry handling
  • Validation: strict format checking for all supported formats
  • Copy support: one-click copy for individual or all generated addresses
  • Private: runs entirely in the browser — no data transmitted

Use Cases

  • Network configuration: generate test MAC addresses for virtual machines or containers
  • Device identification: look up manufacturer from a MAC address
  • Network documentation: format MAC addresses consistently
  • Lab environments: batch generate addresses for test setups
  • Education: understand MAC address structure and OUI system