UUID Generator
Generate random v4 UUIDs, one at a time or in bulk.
Processed 100% in your browser — nothing you enter here is ever uploaded.
Common use cases
Seeding test data with unique keys
Generate a batch of UUIDs to use as primary keys when populating a database for local development or tests.
Naming a temporary file or storage object
Give an uploaded file or S3 object a collision-free name without adding a naming scheme to design.
Tracing a request across services
Assign a correlation ID to a request so its path through multiple microservices can be followed in logs.
How to use the UUID Generator
Set how many UUIDs you need — up to 500 at once.
Click Generate to create fresh random (version 4) UUIDs using your browser's cryptographically secure random number generator.
Copy all of them at once, or select individual lines to copy just what you need.