🔤 Unicode 转字节Convert Unicode to Bytes

使用说明与常见问题How-to & FAQ

「Unicode 转字节」是什么？What is the Convert Unicode to Bytes tool?

UTF-8 / UTF-16LE 十六进制字节。可设置「编码」。UTF-8 / UTF-16LE hex bytes. Settings: Encoding.

如何使用「Unicode 转字节」？How do I use the Convert Unicode to Bytes tool?

在「Unicode 转字节」中，按需设置「编码」等选项，然后点击「转换」按钮即可。In the Convert Unicode to Bytes: Set "Encoding", then click "Convert".

表情符号等代理对怎么处理？How are surrogate pairs such as emoji handled?

UTF-8 模式按完整码点编码，表情符号通常是 4 个字节；UTF-16LE 模式按 JavaScript 的 UTF-16 码元输出，基本平面外的字符会显示为两个码元（代理对），共 4 个字节。In UTF-8 mode each full code point is encoded, so an emoji is usually 4 bytes. In UTF-16LE mode the output follows JavaScript UTF-16 code units, so a character outside the Basic Multilingual Plane appears as two code units (a surrogate pair), 4 bytes in total.

有哪些选项可以调整？What options can I adjust?

「Unicode 转字节」的设置：「编码」可选 UTF-8、UTF-16LE（默认 UTF-8）。每次生成结果都按当前设置处理。Settings in the Convert Unicode to Bytes — "Encoding": UTF-8, UTF-16LE (default UTF-8). The result always uses the current settings.

编码和加密有什么区别？Is encoding the same as encryption?

编码（如 Base64、URL 编码）可直接还原，不提供保密性；加密需要密钥。「Unicode 转字节」的处理全部在本地完成。No. Encoding (Base64, URL…) is reversible by anyone; encryption needs a key. The Convert Unicode to Bytes works fully offline in your browser.

「Unicode 转字节」免费吗？需要注册吗？Is the Convert Unicode to Bytes free? Do I need an account?

「Unicode 转字节」完全免费，无需注册或安装，打开网页即可使用，手机和电脑都能用；输入的内容只在你的浏览器本地处理。The Convert Unicode to Bytes is completely free with no sign-up or install and works on phones and desktops; what you enter is processed only in your browser.