BASE64编码是一种将二进制数据转换为ASCII字符的编码方式，常用于数据传输和存储。BASE64编码使用百分号（%）后跟两个十六进制数字来表示特殊字符。
编码示例：
输入：Hello World → 输出：SGVsbG8gV29ybGQ=
解码示例：
输入：SGVsbG8gV29ybGQ= → 输出：Hello World
所有操作均在您的浏览器本地完成，不会将您的文本内容上传至服务器或保存在任何地方。您可以放心使用本工具处理敏感文本内容。
BASE64 encoding is a way to convert binary data into ASCII characters, commonly used for data transmission and storage. URL encoding uses a percent sign (%) followed by two hexadecimal digits to represent special characters.
Encode Example:
Input: Hello World → Output: SGVsbG8gV29ybGQ=
Decode Example:
Input: SGVsbG8gV29ybGQ= → Output: Hello World
All operations are performed locally in your browser, and your text content is never uploaded to any server or saved anywhere. You can confidently use this tool to process sensitive text content.
