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🧬 Unicode 转 Base64Convert Unicode to Base64
把文本按 UTF-8 编码成 Base64。本地处理。Encode text as UTF-8 Base64. Processed locally.
使用说明与常见问题How-to & FAQ
「Unicode 转 Base64」是什么？What is the Convert Unicode to Base64 tool?
把文本按 UTF-8 编码成 Base64。本地处理。Encode text as UTF-8 Base64. Processed locally.
如何使用「Unicode 转 Base64」？How do I use the Convert Unicode to Base64 tool?
在「Unicode 转 Base64」中，把内容粘贴或输入到上方输入框，结果会实时显示在下方，点击「复制结果」即可复制。例如输入「Hi」，得到「SGk=」。In the Convert Unicode to Base64: Paste or type into the input box; the result appears below instantly — click "Copy result" to copy it. Example: "Hi" → "SGk=".
用什么编码？Which encoding is used?
先把文字按 UTF-8 编码成字节，再转成 Base64，结果下方显示字节数。所以中文和表情符号都能正确往返，例如 Hi 得到 SGk=。The text is encoded as UTF-8 bytes and then as Base64, with the byte count shown below. Chinese and emoji therefore round-trip correctly; Hi gives SGk=.
输入和输出是什么样的？What does the input and output look like?
例如在「Unicode 转 Base64」中输入 Hi，输出为：SGk=。For example, the Convert Unicode to Base64 turns the input Hi into: SGk=.
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 Base64」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 Base64 works fully offline in your browser.
「Unicode 转 Base64」免费吗？需要注册吗？Is the Convert Unicode to Base64 free? Do I need an account?
「Unicode 转 Base64」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 Base64 is completely free with no sign-up or install and works on phones and desktops; what you enter is processed only in your browser.