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UUID Articles & Guides

Everything you need to know about UUIDs — versions, best practices, and real-world usage.

UUID Versions Explained: V1 vs V4 vs V7

Understand the differences between UUID v1, v4, v5, and v7. Learn which UUID version to use for databases, APIs, and distributed systems.

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GUID vs UUID: What's the Difference?

GUID and UUID are often used interchangeably, but there are subtle differences. Learn what sets them apart and when each term applies.

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UUID as Database Primary Key: Best Practices

Should you use UUIDs as primary keys? Learn the trade-offs, performance implications, and best practices for UUIDs in PostgreSQL, MySQL, and more.

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How to Generate UUIDs in JavaScript, Python, Java, and Go

Code examples for generating UUIDs in every major programming language. Copy-paste snippets for JavaScript, Python, Java, Go, and more.

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UUID Alternatives: ULID, NanoID, CUID, and Short UUID Compared

Compare UUID alternatives like ULID, NanoID, CUID, and short UUIDs. Learn when to use each and their trade-offs for unique ID generation.

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