MAC Address Generator

Generate single or batch random MAC addresses. Customize Organizationally Unique Identifier (OUI) vendor prefixes, character case (uppercase vs lowercase), and delimiter formats (colon `:`, hyphen `-`, dot `.`, or plain hex).

Why Use This Tool?

• Software & QA Testing: Generate test MAC addresses for virtual machines, network emulators, and unit tests.
• Network Privacy: Generate random MAC address strings for MAC spoofing testing.
• Bulk MAC List Generation: Create bulk lists of 100+ valid MAC addresses.

How to Use

1. Select Quantity (e.g. `10`) and Delimiter Format (`:`, `-`, `.`, or none).
2. Optionally specify a custom 6-character OUI Vendor Prefix.
3. Click Generate and copy generated MAC address list.

Real Working Example

Input:

Quantity: 5 | Format: Colon (:) | Case: Uppercase | Prefix: 00:11:22

Output Result:

00:11:22:4F:A1:89
00:11:22:9B:C3:D4
00:11:22:E5:67:8A
00:11:22:12:34:56
00:11:22:78:90:AB

Important Technical Details & Standards

• CSPRNG Randomness: Uses browser Web Crypto API to ensure 100% cryptographically random unicast MAC address generation.
• Unicast / Locally Administered Bit Support: Correctly manages unicast vs multicast bit flags.
• Client-Side Engine: Fast in-browser batch generation.

Related Networking & Security Tools

• MAC Address Lookup: Look up hardware vendor OUI.
• MAC Address Format Converter: Convert MAC formats.
• Random Number Generator: Generate random numbers.