UUID Generator

Generate and validate Universally Unique Identifiers (UUIDs)

Single UUID Generator
Generate individual UUIDs
Click "Generate" to create a UUID
UUID Validator
Validate UUID format and version
Bulk UUID Generator
Generate multiple UUIDs at once
UUID Information
UUID v1
Time-based UUID. Contains timestamp and MAC address information.
UUID v4
Random UUID. Generated using random or pseudo-random numbers.
Nil UUID
Special UUID with all bits set to zero. Used as a placeholder.
What is a UUID?

A UUID (Universally Unique Identifier) is a 128-bit label used for information in computer systems. UUIDs are designed to be globally unique, even when generated independently, making them ideal for database keys, API identifiers, and distributed systems.

Key Benefits
  • No central registration required
  • Extremely low collision probability
  • Platform independent format
  • Standardized by RFC 4122
Common Use Cases
  • Database primary keys
  • API resource identifiers
  • Session tokens
  • File and object names
UUIDs are represented as 32 hexadecimal digits displayed in five groups separated by hyphens (8-4-4-4-12), for a total of 36 characters including hyphens.