UUID Generator

Generate random UUIDs and copy them in one click.

Generated UUIDs

Click to copy individual UUIDs or generate new ones

cc690ac2-c4ed-429f-bb81-5f37865ebfb7

c7c3133f-78b5-44d7-9b26-0bd6a2c65868

81ce1c63-3098-4fd0-9463-6f8460cb327a

6b595290-d693-4cc2-b5cd-52b8ca4aecac

ce71c4b6-f604-4fe0-b13d-c6ffb85652cf

About UUIDs

Learn about UUID generation and usage

What are UUIDs?

UUID (Universally Unique Identifier) is a 128-bit number used to uniquely identify information in computer systems. Each UUID consists of 32 hexadecimal digits displayed in 5 groups separated by hyphens.

Common Use Cases

Database record identifiers
Distributed systems and microservices
Session IDs and tokens
File and resource naming
Cross-platform unique identifiers

UUID Benefits

Extremely low collision probability
No central coordination needed
Suitable for distributed systems
Platform and language independent

Frequently Asked Questions

What is a UUID used for?

UUIDs uniquely identify records in databases, API resources, session tokens, and file names without a central authority.

What is the difference between UUID v1 and v4?

v1 is time-based (contains a timestamp and hardware MAC address). v4 is random — preferred for most use cases for privacy.