UUID Generator

Generate universally unique identifiers (UUID/GUID) for database records, APIs, and distributed systems.

UUID Version

Quantity

Uppercase Output Remove Hyphens Add Braces Include Version Info Include Timestamp Validate UUIDs

About UUIDs

UUID v1: Time-based with MAC address and clock sequence

UUID v3: MD5 hash of namespace and name

UUID v4: Randomly generated (most common)

UUID v5: SHA-1 hash of namespace and name

Database Records: Primary keys and unique identifiers

API Development: Resource identification and tracking

Distributed Systems: Cross-system entity identification

File Systems: Unique file and directory identifiers

Standard Format: xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx

Example: 550e8400-e29b-41d4-a716-446655440000

Structure: 8-4-4-4-12 hexadecimal characters (32 total)