Image Conversion
Convert PNG to JPG Online — Free
Fast, free PNG to JPG 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 .png 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 .jpg file when it's ready.
什么是 PNG？
PNG is a lossless image format that supports transparency. It's ideal for graphics, logos, and images requiring sharp edges or transparent backgrounds.
格式详情
- 全称
- Portable Network Graphics
- 扩展名
- .png
主要特点
- Lossless quality
- Transparency support
- Sharp edges
- Web optimized
什么是 JPG？
JPG (JPEG) is the most common image format for photographs. It uses lossy compression to achieve small file sizes while maintaining good visual quality.
格式详情
- 全称
- JPEG Image
- 扩展名
- .jpg
主要特点
- Universal support
- Small file sizes
- Great for photos
- Adjustable quality
PNG 与 JPG 对比
| 特性 | PNG | JPG |
|---|---|---|
| 全称 | Portable Network Graphics | JPEG Image |
| 扩展名 | .png | .jpg |
| 最适合 | Lossless quality | Universal support |
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.