Image Conversion
Convert BMP to APNG Online — Free
Fast, free BMP to APNG converter. No registration required.
或从以下导入
200万+文件已转换
数千用户的信赖之选
安全传输
HTTPS 加密上传
隐私优先
文件处理后自动删除
无需注册
即刻开始转换
随处可用
任何浏览器，任何设备
如何转换
1
Upload your .bmp file by dragging it into the upload area or clicking to browse.
2
Choose your output settings. The default settings work great for most files.
3
Click Convert and download your .apng file when it's ready.
什么是 BMP？
BMP is a simple, uncompressed image format native to Windows. It provides perfect quality but results in very large file sizes.
格式详情
- 全称
- Bitmap Image
- 扩展名
- .bmp
主要特点
- Uncompressed
- Windows native
- Perfect quality
- Simple format
什么是 APNG？
APNG (Animated PNG) is an extension of the PNG format that supports animation. It offers full alpha transparency and better image quality than GIF, making it ideal for high-quality web animations.
格式详情
- 全称
- Animated PNG
- 扩展名
- .apng
主要特点
- Animated images
- Full transparency
- Better quality than GIF
- Web-optimized
BMP 与 APNG 对比
| 特性 | BMP | APNG |
|---|---|---|
| 全称 | Bitmap Image | Animated PNG |
| 扩展名 | .bmp | .apng |
| 最适合 | Uncompressed | Animated images |
常见问题
Converting between lossless formats (PNG, BMP, TIFF) preserves perfect quality. For lossy formats like JPG and WebP, you can adjust the quality slider to control compression. Default settings prioritize visual quality.
Transparency is preserved when converting to formats that support it (PNG, WebP, TIFF, GIF). If the target format doesn't support transparency, a white background is applied.
Yes. Upload your HEIC files and convert to JPG, PNG, or WebP instantly. Perfect for making iPhone photos compatible with any device or platform.
No resolution limit. We handle images of any size — from small icons to high-resolution photos and print-ready images.
Pro users can batch convert multiple images at once. Free users can convert one image at a time. All conversions are processed on our servers, so even large files convert quickly.