UUID Generator

About UUIDs

A UUID (Universally Unique Identifier) is a 128-bit number used to uniquely identify information. Version 4 UUIDs are randomly generated and have extremely low collision probability.

UUID Format

Standard format: xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx

• The "4" indicates UUID version 4 (random)
• The "y" position can be 8, 9, A, or B
• All other characters are random hexadecimal digits

Use Cases

• Database primary keys
• Session identifiers
• API request tracking
• File naming and organization
• Distributed systems coordination