How to Use This Tool 使用说明

1. Paste your plain text into the input area and click Encode to convert it to Base64.
2. To decode, paste a Base64 string and click Decode to get the original text.
3. The tool auto-detects whether your input looks like Base64 and suggests the appropriate action.
4. Click Copy to copy the result to your clipboard.
5. All processing is done locally in your browser using JavaScript.

1. 将纯文本粘贴到输入区域，点击 Encode 转换为 Base64。
2. 要解码，粘贴 Base64 字符串并点击 Decode 获取原始文本。
3. 工具会自动检测输入是否像 Base64 格式，并建议适当的操作。
4. 点击 Copy 复制结果到剪贴板。
5. 所有处理都在您的浏览器中通过 JavaScript 本地完成。

Frequently Asked Questions 常见问题

• What is Base64? — Base64 is a binary-to-text encoding scheme that represents binary data using 64 ASCII characters. It is commonly used to encode data in emails, URLs, and API payloads.
• Is Base64 encryption? — No. Base64 is encoding, not encryption. It can be easily decoded by anyone. Never use Base64 to store sensitive information like passwords.
• Does it support Unicode/Chinese characters? — Yes. The tool properly handles UTF-8 encoding, so Chinese characters, emojis, and other Unicode text are encoded and decoded correctly.

• 什么是 Base64？ — Base64 是一种二进制到文本的编码方案，使用 64 个 ASCII 字符表示二进制数据。常用于电子邮件、URL 和 API 数据的编码。
• Base64 是加密吗？ — 不是。Base64 是编码而非加密，任何人都可以轻松解码。切勿使用 Base64 存储密码等敏感信息。
• 支持 Unicode/中文字符吗？ — 支持。工具正确处理 UTF-8 编码，中文、表情符号和其他 Unicode 文本都能正确编解码。