UUID Generator
Generate random version 4 UUIDs for development use.
How this works
A version 4 UUID is 122 bits of randomness formatted as xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx, generated with your browser's own crypto.randomUUID() (falling back to crypto.getRandomValues on older browsers that don't have it yet) -- the same source of randomness used for the site's password and random number generators.