UUID Generator

Generate universally unique identifiers (UUIDs) instantly with our free online UUID generator. Perfect for developers, database administrators, and anyone who needs unique string identifiers for applications, databases, or systems.

What are UUIDs?

UUID (Universally Unique Identifier) is a 128-bit identifier standard that guarantees uniqueness across space and time. UUIDs are commonly used in software development for database keys, session IDs, and object identification.

Supported UUID Versions:

• UUID v1: Time-based UUIDs with MAC address
• UUID v4: Random or pseudo-random UUIDs (most common)
• Nil UUID: Special UUID with all zeros
• Generate multiple UUIDs at once (1-100)
• Copy individual or all UUIDs to clipboard

Common Use Cases:

• Database primary keys and foreign keys
• Session identifiers for web applications
• File naming and version control
• API tokens and authentication
• Distributed system object identification
• Testing and development data generation

Essential tool for software developers, system architects, and database designers who need reliable unique identifiers for their applications and systems.