UUID Generator

Generate universally unique identifiers (UUIDs) using UUID v4 (random) or UUID v1 (timestamp + MAC address).

UUID v4 (Random)

Fully random UUID that requires no personal information. Most commonly used and privacy-friendly.

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UUID v1 (Timestamp + MAC)

Requires your MAC address to generate a time-based UUID. Your MAC address never leaves your browser — this happens fully client-side.

Enter your MAC address: Format: 12 hex digits, with or without colons.

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Why choose UUID v1 or v4?
UUID v1 uses timestamp + your MAC address to create ordered unique IDs.
UUID v4 is fully random and more privacy-preserving.
This tool generates UUIDs locally in your browser, so no data is sent or stored.