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UUID Generator

Generate UUID-style identifiers for database primary keys, API resources and distributed systems. Follows the standard 8-4-4-4-12 UUID layout.

Code Maker
Character Sets
Generated Output
XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX
XXXXXXXX-XXXX-XXXX-XXXX-XXXXXXXXXXXX

Frequently Asked Questions

Is this the same as a real UUID v4?

Real UUID v4 sets specific version and variant bits. This tool generates the same visual 8-4-4-4-12 format using random alphanumeric characters — suitable for most non-standards-critical uses.

When should I use UUIDs vs short IDs?

UUIDs are best for distributed systems where multiple services generate IDs independently. Short IDs are better for URLs, user-facing references and database index performance.

Related Tools

#️⃣
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Session Token Generator
Secure session and auth tokens.

Further Reading

🎲
True Randomness vs Pseudo-Randomness: Why It Matters for Code Generation
Not all randomness is equally random. Here is the real difference between a cryptographically secure generator and the everyday kind.
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How to Generate Unique Codes That Never Repeat, Even at Scale
The naive approach to uniqueness works fine for a few hundred codes and quietly breaks down at a few hundred thousand. Here is what actually works.
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UUID vs GUID: What's the Difference?
Two acronyms, one underlying identifier. Here is the real technical difference between a UUID and a GUID.
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