UUID Generator

What is a UUID?

A Universally Unique Identifier (UUID) is a 128-bit label used for information in computer systems. UUIDs are standardized by the Open Software Foundation (OSF) as part of the Distributed Computing Environment (DCE). The probability that a UUID will be duplicated is not zero, but is close enough to zero to be negligible.

UUID v4 Format

UUID version 4 is randomly generated. It follows the pattern: xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx where x is any hexadecimal character and y is one of 8, 9, a, or b. Our generator uses the browser's crypto.randomUUID() API for maximum cryptographic security.

Common Use Cases

• Database primary keys for distributed systems
• Unique transaction IDs in payment processing
• Session tokens and authentication identifiers
• File naming to avoid conflicts
• API request tracking and logging