UUID Generator
Generate cryptographically secure RFC 4122 compliant version 4 UUIDs. Generate single or multiple UUIDs at once.
How to use uuid generator
- 1
Select Quantity
Enter the number of version 4 UUIDs you want to generate.
- 2
Generate
Click the Generate UUIDs button to produce cryptographically secure identifiers.
- 3
Copy Result
Copy the list of generated UUIDs or download them as a text file.
About the UUID Generator
A UUID (universally unique identifier) is a 128-bit value formatted as 32 hex digits in five groups, designed so that independent systems can generate IDs without coordinating with each other and still land on a collision essentially never — the odds of two version-4 UUIDs matching are astronomically lower than a hardware failure happening first.
This is why they're the default choice for database primary keys in distributed systems, request/trace IDs in logging pipelines, and session or API-key identifiers — anywhere a sequential integer would leak information about volume or ordering, or where multiple services need to mint IDs independently without a shared counter. This generator produces RFC 4122-compliant version 4 (random) UUIDs using a cryptographically secure random source, and can batch-generate any quantity at once.
Frequently Asked Questions
What is a UUID?
A Universally Unique Identifier (UUID) is a 128-bit label used for information in computer systems. Version 4 UUIDs are completely randomly generated.
Are these UUIDs cryptographically secure?
Yes, our Go backend generates them using the cryptographically secure random number generator in Go's standard library.