Generate one or many random UUIDs (version 4) instantly. Perfect for database keys, session IDs and unique identifiers — free, private and no sign-up needed.
Tip: click any single UUID to copy just that one.
How to Use
- Choose how many UUIDs you need (from 1 to 50).
- Click Generate UUIDs — a fresh list appears instantly.
- Click any single UUID to copy just that one, or use Copy All to copy the whole list.
Key Features
- Random UUID v4 — generated with your browser’s cryptographic random number generator.
- Generate 1 to 50 at a time — ideal for seeding test data.
- Click-to-copy any single UUID, or copy the entire list at once.
- No duplicates — every UUID in a batch is generated fresh.
- 100% private — generated locally; nothing is sent to a server.
FAQs
Is this UUID generator free?
Yes. It is completely free with no sign-up and no limits on how many UUIDs you generate.
What is a UUID?
A UUID (universally unique identifier) is a 128-bit label like 550e8400-e29b-41d4-a716-446655440000, commonly used as database keys, session IDs and unique references in software.
Are the generated UUIDs really unique?
Version 4 UUIDs are built from 122 random bits, so the chance of two being identical is vanishingly small — safe to use as unique identifiers.
Is anything sent to a server?
No. All UUIDs are generated locally in your browser with JavaScript, so nothing leaves your device.