Base64 转换Base64 Encoder / Decoder
支持中文与 Emoji 的 UTF-8 文本编码与解码，内容仅在浏览器本地处理。Encode and decode UTF-8 text, including Chinese and emoji, entirely in your browser.
Base64 转换使用指南Base64 Encoder / Decoder: guide
免费在线 Base64 编码、解码工具，支持中文、Emoji 和 UTF-8 文本，快速还原 Base64 字符串；文本不上传服务器。Encode and decode UTF-8 text, including Chinese and emoji, entirely in your browser.
- 输入普通文本选择编码，或粘贴 Base64 字符串选择解码。Enter plain text to encode, or Base64 text to decode.
- 核对结果后复制，遇到无效输入请检查字符与填充。Check the result and copy it. Check characters and padding if decoding fails.
Base64 是加密吗？Is Base64 encryption?
不是。Base64 是可逆的编码方式，不能保护密码或机密数据；此工具用于 UTF-8 文本，不是任意二进制文件转换器。No. Base64 is reversible encoding, not a way to protect secrets. This tool handles UTF-8 text, not arbitrary binary files.
免费使用，无需注册。工具输入在浏览器本地处理；网站访问统计不包含工具输入内容。Free to use, no registration. Tool input is processed locally in your browser and is not included in website analytics.