UUID Generator

Generate identifiers for test data

UUIDs are useful when you need realistic identifiers for database records, API examples, event messages, test fixtures, imports, and temporary objects. A UUID v4 is randomly generated and follows the standard 8-4-4-4-12 format.

This generator uses the browser's crypto API where available. You can generate a single value or a batch of values and copy them into your workflow.

Good places to use UUIDs

• Create sample IDs for mock API responses and documentation.
• Populate local test data without reusing production identifiers.
• Generate temporary correlation IDs while debugging services.

FAQ

Are generated UUIDs stored?

No. They are generated in your browser and displayed on the page.

What version of UUID does this create?

The generator creates UUID v4 values using browser cryptography where available.

Can UUIDs collide?

Collisions are theoretically possible but extremely unlikely when generated with secure randomness.