UUID Generator
Generate unique UUIDs for keys, records and tests.
A UUID is a 128-bit identifier that is, for all practical purposes, globally unique — which makes it ideal when you need a key that two systems can each create independently without ever colliding. Generate one or a batch here and copy them straight into your code or test fixtures.
Where they shine
- Primary keys you can assign client-side before a record reaches the database.
- Idempotency keys and request IDs for tracing API calls.
- Filenames, session tokens and seed data that must never clash.
Version 4 UUIDs are random and the safe default for most applications.
