UUID Generator

UUID Generator

Generate unique UUIDs quickly and easily for use in your applications, databases, APIs and development projects.

UUIDs (Universally Unique Identifiers) provide a convenient way to create identifiers that are extremely unlikely to collide with identifiers generated elsewhere.

What is a UUID?

A UUID is a 128-bit identifier commonly used in software development when a unique value is required without relying on a central ID generator.

A typical UUID looks like this:

550e8400-e29b-41d4-a716-446655440000

UUIDs are particularly useful in distributed applications because different systems can generate identifiers independently without needing to coordinate with each other.

Common uses for UUIDs

UUIDs are commonly used for:

• Database primary keys
• API resource identifiers
• Distributed systems
• Session and request identifiers
• File and object identifiers
• Development and testing data
• Application entities
• Correlation and tracing IDs

Generate UUIDs online

Use the UUID Generator whenever you need a fresh unique identifier. There’s no need to install additional software or create a script just to generate a UUID.

For most application and development scenarios, randomly generated UUID v4 values are a simple and widely supported choice.

UUID v4

A UUID v4 is generated using random or pseudo-random values. The enormous number of possible UUIDs makes the probability of two independently generated UUID v4 values being identical exceptionally small.

This makes them well suited to applications where identifiers need to be generated independently across different machines, services or environments.