UUID Generator

Generate Universally Unique Identifiers (UUIDs) for your applications

UUID Version

UUID History

    How to use this UUID Generator:

    • Select the UUID version you need (v1, v3, v4, or v5)
    • For versions 3 and 5, provide a namespace UUID and name
    • Click Generate UUID to create a new UUID
    • Click Copy to copy the UUID to your clipboard
    • Use Bulk Generate to create multiple UUIDs at once
    • View generated UUIDs in UUID History for easy access

    About UUID Versions:

    • Version 1: Time-based UUID using MAC address and timestamp
    • Version 3: MD5 hash of a namespace and name
    • Version 4: Randomly generated UUID (most common)
    • Version 5: SHA-1 hash of a namespace and name (preferred over v3)
    • All versions generate 128-bit identifiers with extremely low collision probability
    • Format: 8-4-4-4-12 hexadecimal digits (e.g., 123e4567-e89b-12d3-a456-426614174000)

    All UUID generation happens in your browser - we never store or transmit your data