关于本工具
「图片转 Base64」本地读取文件并直接转码，不上传；支持多种复制格式（Data URI、img 标签、CSS 背景、Markdown）。 全部处理在您的浏览器本地完成，图片绝不会上传到任何服务器，既保护隐私又无需等待网络传输。
常见问题
我的图片会被上传吗？+
不会。所有处理都在您浏览器本地完成，图片不会离开您的设备。
支持批量处理吗？+
本工具为交互式 / 单文件设计，处理在本地即时完成。
大图片会卡吗？+
较大的图会生成很长的字符串，复制时可能略慢，但全程在本地完成。
About
Image to Base64 Reads the file locally and encodes it directly - no upload. Offers several copy formats (Data URI, img tag, CSS background, Markdown). Everything runs locally in your browser — your images never leave your device, protecting privacy and skipping upload waits.
FAQ
Are my images uploaded?+
No. All processing happens locally in your browser; images never leave your device.
Batch supported?+
This tool is interactive / single-file by design, processed instantly and locally.
Will large images lag?+
Big images make very long strings; copying may be a bit slow, but everything stays local.