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UUID v4 生成器UUID v4 Generator

使用浏览器安全随机数批量生成 UUID v4，支持批量复制和大小写切换。Generate random UUID v4 / GUID identifiers using browser cryptographic randomness, with batch copying and letter-case options.

生成设置

UUID v4 生成器使用指南UUID v4 Generator: guide

使用浏览器安全随机数批量生成 UUID v4 / GUID，支持大小写切换和批量复制，适合测试数据、随机标识符与开发调试。Generate random UUID v4 / GUID identifiers using browser cryptographic randomness, with batch copying and letter-case options.

  1. 设置需要生成的 UUID 数量。Set the number of UUIDs to generate.
  2. 生成 UUID v4，按需切换字母大小写后复制结果。Generate a batch, choose letter case and copy the result.

UUID v4 可以当作密码吗？Can UUIDs replace passwords?

UUID v4 主要用于随机标识符，不应直接替代账户密码或权限校验。生成密码请使用随机密码工具。UUIDs are identifiers, not an authentication mechanism. Use the password generator for account passwords.

免费使用，无需注册。工具输入在浏览器本地处理；网站访问统计不包含工具输入内容。Free to use, no registration. Tool input is processed locally in your browser and is not included in website analytics.