什么是 UUID 生成器?
UUID 生成器是一个免费的在线工具,用于生成符合 RFC 4122 标准的 UUID v4(通用唯一标识符)。生成单个 UUID 或批量生成最多 1000 个。所有生成都在浏览器中进行,确保隐私和安全。
如何生成 UUID
点击生成按钮创建一个随机的 UUID v4。它会立即显示在输出字段中。点击复制将其复制到剪贴板。
- Click "Generate UUID" for a single new identifier.
- Set a quantity (1 to 100) and click "Bulk Generate" for multiple UUIDs at once.
- Toggle Uppercase to switch between lowercase and uppercase hexadecimal output.
- Toggle Hyphens to include or remove the standard dash separators.
- Copy individual UUIDs or use "Copy All" to grab the full list.
批量生成 UUID
使用数量输入框指定要生成的 UUID 数量(1 到 1000)。点击生成,工具会创建指定数量的 UUID,每个在新行上。您可以一次性复制所有。
了解 UUID v4
- Database primary keys in distributed systems and microservices.
- Unique file names for uploads to prevent conflicts.
- API request IDs for tracing and logging.
- Session and transaction identifiers.
- Test data generation for development and QA.
UUID 的常见用例
UUID version 4 generates identifiers using random or pseudo-random numbers. Of the 128 bits, 122 are random and 6 are fixed to indicate the version and variant. This produces over 5.3 undecillion possible combinations, making the chance of a collision negligibly small even at massive scale.
All generation happens client-side in your browser. No UUIDs are sent to or stored on any server, so you can safely generate identifiers for any project without privacy concerns.