Is UUID Generator free to use?

Yes, UUID Generator is completely free. No registration, no account, and no hidden costs — ever.

Is my data safe when using UUID Generator?

All processing happens directly in your browser. Your data never leaves your device — nothing is uploaded or stored on our servers.

No. All CheckTown tools work instantly without registration or sign-up.

UUID Generator works on any device — desktop, tablet, or phone. The interface adapts to your screen size.

即时生成全局唯一标识符

类型

格式

批量生成

准备就绪

选择格式，然后点击“生成 UUID”

Ctrl+Enter 运行Ctrl+Shift+C 复制

UUID 是现代软件中唯一 ID 的标准。了解不同的版本以及各自的适用场景。

什么是 UUID？

UUID（通用唯一标识符）是一个 128 位的标识符，无需中央权威机构即可保证在空间和时间上的唯一性。UUID 的格式为 32 个十六进制数字，分为 5 组并以连字符分隔：xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx。