Punchbit

UUID Generator

Generate cryptographically random v4 UUIDs. Bulk generate up to 100 at once with one-click copy.

Count
71a633ef-5948-4308-b144-34cc615d92c4

Frequently Asked Questions

What is a UUID?

A UUID (Universally Unique Identifier) is a 128-bit identifier that's practically guaranteed to be unique. Version 4 UUIDs are randomly generated and look like: 550e8400-e29b-41d4-a716-446655440000.

Are these UUIDs truly random?

Yes. This tool uses the Web Crypto API (crypto.randomUUID()) which provides cryptographically secure random values. These are suitable for database IDs, session tokens, and any use case requiring uniqueness.

What's the difference between UUID and GUID?

They're the same thing. GUID (Globally Unique Identifier) is Microsoft's term for UUID. The format and generation methods are identical.

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