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UUID Generator
Generate Universally Unique Identifiers (UUIDs) with support for v1, v3, v4, and v5. Generate single or batch UUIDs up to 100 at once.
Random UUID (most common, recommended)
1
1255075100
About UUIDs
A UUID (Universally Unique Identifier) is a 128-bit number used to uniquely identify information in computer systems. Also known as GUID (Globally Unique Identifier).
UUID Versions:
- • Version 1: Time-based with MAC address (reveals when and where created)
- • Version 3: Name-based using MD5 hash (deterministic, same input = same output)
- • Version 4: Random or pseudo-random (most common, recommended for general use)
- • Version 5: Name-based using SHA-1 hash (deterministic, more secure than v3)
Format:
xxxxxxxx-xxxx-Mxxx-Nxxx-xxxxxxxxxxxxWhere M is the version (1-5) and N indicates the variant.