UUID Generator

Generate unique identifiers for databases, APIs, and applications

UUID v4

NIL UUID Generator

Special

Generate NIL UUID (Null UUID) - a special identifier consisting of all zeros

UUID Settings

Format

Count: 1Single

About NIL UUID

The NIL UUID (also called Null UUID) is a special UUID consisting entirely of zeros. It represents an empty or uninitialized UUID value and is defined in RFC 4122.

RFC 4122SpecialAll ZerosNull

Properties

Always the same value (all zeros)

Represents empty/uninitialized state

Defined in RFC 4122 specification

Used for null checks and comparisons

Common Use Cases

Default/empty UUID values in databases

Null checks and validation

Placeholder values in templates

Testing and development

UUID Information

RFC 4122 Compliant

All UUIDs generated follow the official RFC 4122 standard.

Cryptographically Secure

UUID v4 uses cryptographically secure random number generation.

No Server Storage

All generation happens in your browser. Nothing is stored on our servers.