Random UUID Generator

Unique Identifiers

Generate random UUIDs (Universally Unique Identifiers) instantly. UUIDs are 128-bit numbers used to uniquely identify information in computer systems.

Generation Options

UUID Version:

Number of UUIDs:

Output Format:

Namespace:

Generated UUIDs

Generated UUIDs will appear here

UUID Versions

v4 Random

Most common version. Uses random numbers for all bits.

v1 Time-based

Based on timestamp and MAC address (or random node).

v3/v5 Namespace-based

Based on namespace and name (MD5/SHA-1).

Common Uses

Database primary keys
Session IDs
API request IDs
File names and references
Distributed systems

Technical Info

Total bits: 128 bits

Format: 8-4-4-4-12 hex

Standard: RFC 4122