UUID / GUID Generator

Generate RFC 4122 UUID v4 or UUID v7 identifiers in bulk. Free, no API key needed.

Click Generate to create UUIDs

UUID Versions

v4 (Random): 122 random bits. No ordering guarantees — each UUID is independent. Most commonly used for database IDs, unique keys, and general-purpose identifiers.
v7 (Time-ordered): 48-bit millisecond timestamp + 74 random bits. Monotonically sortable by generation time. Ideal for database primary keys, distributed systems, and log correlation.