🖼️ PNG 转 BMPPNG to BMP Converter
把 PNG 图片批量转换为 BMP：拖入多张图片一键转换，输出 24 位标准位图，可打包下载 ZIP，图片只在浏览器本地处理，不会上传。Convert PNG images to BMP in bulk — drop in several files, as standard 24-bit bitmaps, and download them individually or as a ZIP. Images are processed locally and never uploaded.
使用说明与常见问题How-to & FAQ
「PNG 转 BMP」是什么？What is the PNG to BMP Converter tool?
把 PNG 图片批量转换为 BMP：拖入多张图片一键转换，输出 24 位标准位图，可打包下载 ZIP，图片只在浏览器本地处理，不会上传。Convert PNG images to BMP in bulk — drop in several files, as standard 24-bit bitmaps, and download them individually or as a ZIP. Images are processed locally and never uploaded.
如何使用「PNG 转 BMP」？How do I use the PNG to BMP Converter tool?
在「PNG 转 BMP」中，按需设置「透明处背景色」等选项，然后点击「全部下载（ZIP）」按钮即可。支持拖放文件。In the PNG to BMP Converter: Set "Background for transparency", then click "Download all (ZIP)". Drag-and-drop files is supported.
BMP 是什么格式？What kind of BMP is produced?
输出 24 位无压缩 BMP（Windows 位图），兼容几乎所有软件和老设备，但文件很大（宽 × 高 × 3 字节）；透明区域填充为背景色。An uncompressed 24-bit Windows bitmap that almost any software or legacy device can read, but large (width × height × 3 bytes); transparent areas are filled with the background color.
图片会上传到服务器吗？Are my images uploaded?
不会。解码和编码都用浏览器的 Canvas 在本地完成，文件不会离开你的设备；照片中的 EXIF 元数据（包括位置）会被去除。No. Decoding and encoding happen locally with the browser's Canvas, so files never leave your device; EXIF metadata (including location) is removed.
「PNG 转 BMP」免费吗？需要注册吗？Is the PNG to BMP Converter free? Do I need an account?
「PNG 转 BMP」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 PNG to BMP Converter is completely free with no sign-up or install and works on phones and desktops; what you enter is processed only in your browser.