MAC address generator

  1. Options
  2. Result

Options

Address format

Generate unique unicast addresses for tests. The local-address switch adjusts both flags in the first byte, even with a fixed prefix. Random addresses are not registered vendor assignments.

Generate MAC addresses online

Use random MAC addresses in test configurations and documentation; export the list as TXT or CSV.

A prefix fixes bytes but does not verify a manufacturer. Unicast and local-address flags may adjust the first byte; a fully fixed prefix permits only one unique address.

Quick start

Generate unique test MAC addresses in the format you need.

  1. Set a prefix and whole count
  2. Choose address flags and notation
  3. Generate, copy or export TXT or CSV
✓ The tool runs directly in the browser and is ready for quick checks without installing software.
✓ Input can be cleared and recalculated immediately, which is useful for repeated small tasks.
✓ Use fullscreen mode when you need more space for long text, structured data or large result blocks.
✓ Copy buttons are available on generated output so results can be reused in code, documents or support chats.
✓ Most operations are deterministic: the same input and options produce the same output.
✓ For sensitive content, prefer local browser tools and review the result before sharing it further.

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