UUID Generator

Generate unique identifiers for databases, APIs, and applications

GUID Generator

Microsoft

Generate Microsoft-style GUIDs (same format as UUID v4)

GUID vs UUID

GUID (Globally Unique Identifier) is Microsoft's term for UUID. They are functionally identical - same format, same generation algorithm. GUIDs are often displayed in uppercase in Microsoft environments.

Microsoft Standard.NET CompatibleUppercase FormatSame as UUID v4

UUID Settings

Count: 1Single

GUID Format

XXXXXXXX-XXXX-4XXX-YXXX-XXXXXXXXXXXX

• 32 hexadecimal digits (uppercase)

• 4 hyphens as separators

• Version 4 (random) identifier

• RFC 4122 compliant

Microsoft Integration

.NET Framework & .NET Core

SQL Server UNIQUEIDENTIFIER

Windows Registry

COM/ActiveX Components

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.