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🔐 Base64 编码解码Base64 Encode / Decode
在线 Base64 编码和解码工具，完整支持中文 UTF-8。Online Base64 encoder and decoder with full UTF-8 support.
使用说明与常见问题How-to & FAQ
「Base64 编码解码」是什么？What is the Base64 Encode / Decode?
在线 Base64 编码和解码工具，完整支持中文 UTF-8。Online Base64 encoder and decoder with full UTF-8 support.
如何使用「Base64 编码解码」？How do I use the Base64 Encode / Decode?
在「Base64 编码解码」中，按需设置点击「编码」、「解码」按钮即可。In the Base64 Encode / Decode: Click "Encode", "Decode".
Base64 是加密吗？Is Base64 encryption?
不是，Base64 只是编码，任何人都能解码，不能用来保护敏感信息。No. Base64 is an encoding anyone can reverse; don't use it to protect secrets.
支持中文吗？Does it support Chinese?
支持，文本按 UTF-8 编码处理。Yes, text is handled as UTF-8.
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。「Base64 编码解码」的处理全部在本地完成。No. Encoding (Base64, URL…) is reversible by anyone; encryption needs a key. The Base64 Encode / Decode works fully offline in your browser.
「Base64 编码解码」免费吗？需要注册吗？Is the Base64 Encode / Decode free? Do I need an account?
「Base64 编码解码」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 Base64 Encode / Decode is completely free with no sign-up or install and works on phones and desktops; what you enter is processed only in your browser.