UUID Generator

Generate unique identifiers instantly

Create UUIDs for databases, APIs, and applications

Generator Options

Number of UUIDs

Format

Quick Generate

UUID v4 Information

Format: 8-4-4-4-12 hexadecimal digits

Length: 36 characters (with hyphens)

Uniqueness: Virtually guaranteed globally unique

Version: Random or pseudo-random generated

Collision Probability: Negligible (1 in 2¹²²)

Common Use Cases

• Database primary keys and record identifiers

• API request/response tracking and correlation

• File names for uploaded or generated files

• Session identifiers and authentication tokens

• Message queue and event correlation IDs

• Distributed system node and service identifiers

UUID Security

UUIDs are generated using cryptographically secure random numbers. They are safe to use as identifiers but should not be used as security tokens or passwords without additional security measures.

UUID Applications

Database Design

Use UUIDs as primary keys in distributed databases to avoid key collisions across multiple systems.

API Development

Generate correlation IDs for request tracking and create unique resource identifiers in REST APIs.

File Management

Create unique file names for uploads, temporary files, and cached resources to prevent conflicts.

Session Management

Generate session tokens and user authentication identifiers with guaranteed uniqueness.

Microservices

Identify services, transactions, and events across distributed systems and message queues.

Testing & Development

Generate test data, mock identifiers, and placeholder values for development environments.

Related Tools