01 二进制字符串Binary String

使用说明与常见问题How-to & FAQ

「二进制字符串」是什么？What is the Binary String tool?

文本 ↔ 01 二进制（UTF-8）。可设置「方向」、「每字节空格」。Text ↔ 01 binary (UTF-8). Settings: Direction, Space every byte.

如何使用「二进制字符串」？How do I use the Binary String tool?

在「二进制字符串」中，按需设置「方向」等选项，然后点击「转换」按钮即可。In the Binary String: Set "Direction", then click "Convert".

中文字符会变成多少位？How are non-ASCII characters handled?

文字先按 UTF-8 编码成字节，再把每个字节写成 8 位二进制。ASCII 字符是 1 字节（8 位），常用汉字是 3 字节（24 位），表情符号通常 4 字节。Text is first encoded as UTF-8 bytes, then each byte is written as 8 binary digits. ASCII characters are 1 byte (8 bits), most Chinese characters 3 bytes (24 bits) and emoji usually 4 bytes.

有哪些选项可以调整？What options can I adjust?

「二进制字符串」的设置：「方向」可选 文本→二进制、二进制→文本（默认 文本→二进制）；可勾选：「每字节空格」（默认勾选）。每次生成结果都按当前设置处理。Settings in the Binary String — "Direction": Text→binary, Binary→text (default Text→binary); tick boxes: "Space every byte" (on by default). 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。「二进制字符串」的处理全部在本地完成。No. Encoding (Base64, URL…) is reversible by anyone; encryption needs a key. The Binary String works fully offline in your browser.

「二进制字符串」免费吗？需要注册吗？Is the Binary String free? Do I need an account?

「二进制字符串」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 Binary String is completely free with no sign-up or install and works on phones and desktops; what you enter is processed only in your browser.