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UUID Generator

Generate cryptographically random UUID v4 identifiers in bulk.

How many

Format

Uppercase

Generated UUIDs (v4)

About the UUID Generator

Generate one or thousands of version 4 UUIDs at once using the browser's secure random source, with options for uppercase, no hyphens or a wrapping format for SQL and code.

Frequently asked questions

Can two UUIDs collide?

In theory yes, in practice no — there are 2^122 possible v4 UUIDs, so a collision is astronomically unlikely.

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