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UUID / GUID Generator

Create cryptographically secure, universally unique identifiers (UUIDv4) for database records, API tokens, or session IDs. Generate as many as you need.

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About the UUID / GUID Generator

Content reviewed 6 August 2026

A UUID (or GUID) is a 128-bit identifier unique enough that you can generate one anywhere without a central authority and trust it won't collide. They're the standard for database keys, API tokens, and session IDs.

This generates cryptographically random Version 4 UUIDs — as many as you need in one click, all in your browser.

Frequently asked questions

Are these UUIDs safe to use as database keys?+

Yes. Version 4 UUIDs are random with 122 bits of entropy, so the practical chance of a collision is negligible even across billions of records. They're widely used as primary keys.

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