密码生成器
UpBox优盒工具箱，免费随机密码生成器，按长度与字符类型生成强密码，使用浏览器加密随机源，可排除易混字符，本地生成不上传。
无需注册 · 数据不上传No sign-up · nothing uploaded
生成选项Options
生成结果Result
强度—
信息熵—
密码已生成，可复制或重新生成
本工具所有运算在本地浏览器完成，你的文件、文本不会上传到服务器
工具介绍
密码生成器按你勾选的字符类型和长度生成随机密码。随机数来自浏览器提供的加密随机源，比普通伪随机更适合生成凭据。 The generator builds a random password from the character sets and length you pick. Randomness comes from the browser crypto source, which is better suited to credentials than ordinary pseudo-randomness.
密码只在本机生成，不上传、不记录。可在长度 8–64 之间调整，并排除 O0Il1| 这类容易看错的字符。 Passwords are created on this device only — never uploaded or logged. Length runs from 8 to 64, and look-alike characters such as O0Il1| can be excluded.
- 加密随机源Browser crypto source
- 长度 8–64 可调Length from 8 to 64
- 四类字符自由组合Four character sets
- 排除易混字符Exclude look-alikes
- 本地生成不记录Local, never logged
使用说明
- 拖动长度滑块，选择需要的密码长度。Drag the length slider to pick a password length.
- 勾选小写、大写、数字、符号中的一种或多种。Tick one or more of lowercase, uppercase, digits and symbols.
- 需要人工抄写时，可勾选“排除易混字符”。When the password must be copied by hand, exclude look-alike characters.
- 点“复制密码”保存到密码管理器，再点“重新生成”可换一个。Copy it into a password manager, and regenerate whenever you want another.
常见问题
生成的密码会被保存吗？Are generated passwords stored?
不会。页面不写入本地存储，也没有网络请求；刷新或关闭页面后密码即消失。No. Nothing is written to local storage and no request is made; the password disappears when the page reloads or closes.
为什么必须至少选一种字符类型？Why must one character set be selected?
没有任何字符集就无法构造密码。页面会提示并要求至少勾选一项。Without a character set there is nothing to build from, so the page asks you to tick at least one.
强度与信息熵是什么关系？How do strength and entropy relate?
信息熵按“长度 × log2(字符集大小)”估算，数值越高越难暴力猜中；页面据此显示较弱、中等、很强。Entropy is estimated as length × log2(charset size); higher means harder to brute-force, and the page maps it to weak, fair or strong.
可以直接用于重要账号吗？Is it safe for important accounts?
可以，但请配合密码管理器使用，避免在多个站点复用同一个密码，并开启两步验证。Yes, but pair it with a password manager, avoid reusing it across sites, and enable two-factor authentication.