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UUID 生成器

可一次生成所需数量的 UUID,方便用于测试数据和键值创建。

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生成的 UUID

使用说明

This tool uses browser-based random UUID v4 generation to create identifiers with a very low collision risk.

要点

  • UUID v4 values are random-based identifiers.
  • They are commonly used for test data, object IDs, and temporary development keys.
  • Security-sensitive tokens may require a stricter system-specific policy.

常见问题

Are UUIDs guaranteed to be unique forever?expand_more

No absolute guarantee exists, but collisions are extremely unlikely in normal development use.

Can I use UUIDs as database primary keys?expand_more

Yes, although index behavior and ordering tradeoffs should be considered for your system.

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