In code
Generate a UUID in Go
The google/uuid module is the de-facto standard.
Go example
Go
import "github.com/google/uuid"
id := uuid.New().String()No install? Use the tool or API
Here's a fresh version 4 UUID generated right now — copy it, or call the API from any language.
004140ac-ea8c-4908-b503-85823beaaf50
curl https://getuuid.sh/api/uuid