Convert JPG to PNG Online Free
Convert JPG files to lossless PNG format to stop compression degradation during future edits. Ideal for design mockups and structured templates.
Drag & drop files here
or click to browse files
Files are processed locally in your browser
How to Convert JPG / JPEG to PNG
Step 1
Upload your JPG images.
Step 2
No compression parameters are needed for PNG creation.
Step 3
Click "Convert" to create PNG wrappers around your images.
Step 4
Save the output PNG files.
About the JPG / JPEG & PNG Formats
JPG / JPEG (Joint Photographic Experts Group)
JPEG is a widely used lossy compression standard for digital images, particularly for those produced by digital photography. It achieves a balance between image quality and file size.
- Extremely high compatibility across all devices and browsers
- Small file sizes for photographic images
- Adjustable compression ratio
- Lossy compression degrades quality with repeated edits
- Does not support transparency (alpha channel)
- Does not support animation
PNG (Portable Network Graphics)
PNG is a raster-graphics file-format that supports lossless data compression. It was created as an improved, non-patented replacement for Graphics Interchange Format (GIF).
- Lossless compression retains perfect quality
- Supports full transparency (alpha channel)
- Excellent for graphics, text, and line art
- Significantly larger file sizes than JPG for photographs
- Does not support animation (unlike APNG which is less compatible)
- Not optimized for print graphics (no CMYK support)
JPG / JPEG vs PNG Comparison
| Feature | JPG / JPEG | PNG |
|---|---|---|
| Type (类型) | Raster Graphics (位图) | Raster Graphics (位图) |
| Transparency (透明度) | No (不支持) | Yes (支持) |
| Animation (动画) | No (不支持) | No (不支持) |
| Compression (压缩) | Lossy (有损压缩) | Lossless (无损压缩) |
| Compatibility (兼容性) | Universal (完美兼容) | Universal (完美兼容) |
Frequently Asked Questions
Will my converted PNG image have a smaller file size?
No, usually the opposite. PNG is a lossless format and is less efficient at compressing photographic content than lossy JPG. The PNG file will likely be larger, but it will be safe from further compression loss.