Global Araç
Uuid Generator
- fe584b11-ef53-40a4-b50e-0185a7a25d5a
- 28281fca-f262-49ba-af8c-bfd05f1f6224
- 94217d3f-4c99-437e-8c14-8ca72ab70084
- f9a69305-5e80-42cd-bd33-dd046ad0dee2
- 0d834739-6c8e-482d-afb5-2e244d776052
A free UUID (v4) generator. Generates cryptographically random UUIDs in your browser. Batch generation up to 50 at a time.
UUIDs are essential for database primary keys, session IDs, and anywhere you need a globally unique identifier that can’t be guessed. Uses crypto.randomUUID() when available, cryptographic fallback otherwise.
Nasıl Kullanılır
- Set how many UUIDs to generate.
- Click Generate.
- Copy individual UUIDs or the whole batch.
- Regenerate any time for a fresh batch.
Sık Sorulan Sorular
What's the difference between UUID v4 and v7?
v4 is fully random (128 bits of entropy). v7 includes a 48-bit timestamp prefix, making it sortable by creation time. Use v4 for maximum unlinkability (session IDs), v7 when you want database-friendly insertion order.
Are these UUIDs truly unique?
v4 UUIDs use 122 bits of randomness — the probability of a collision in a billion-entry table is below one in a quintillion. For all practical purposes they're unique, but they are not cryptographically secret — they should not be used as authentication tokens.
Can I bulk-generate thousands for test data?
Yes — the generator handles batches of 1,000+ in the browser without lag. Copy the full batch with one click and paste into a fixture file or SQL insert statement.