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Generate random version 4 UUIDs for database keys, test fixtures, and correlation IDs. Generate one or many and copy in a list.

UUID generator

Version 4 UUIDs using crypto-grade randomness.

  • eedcbbae-6873-4201-ac8e-179041d7131f
  • 471f89fc-6181-4609-ab2c-49c75749129e
  • ae3b164c-1d22-42c1-a6e3-7066048bf140

How to use UUID generator

  1. Choose how many UUIDs you need.
  2. Click generate.
  3. Copy a single ID or the full list into your app or SQL script.

Example: f47ac10b-58cc-4372-a567-0e02b2c3d479 is a typical v4 UUID shape.

Frequently asked questions

Are version 4 UUIDs unique enough?
Yes. They contain 122 random bits, so the chance of a collision is negligible for virtually any real-world application.
Can I use UUIDs as database keys?
Yes, they are common as primary keys, though sequential IDs can index faster. Choose based on your scale and access patterns.

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