Image File ToolsJPG, PNG or WebP: which one fits?
Use JPG for photographs when an upload form requires it. Keep PNG for transparency or crisp graphics. Try WebP when the destination supports it and a smaller file matters.
The quick comparison
| Format | Useful for | Watch out for |
|---|---|---|
| JPG / JPEG | Photographs and broadly compatible uploads | No transparency; lossy re-encoding |
| PNG | Transparent artwork, diagrams and sharp text | Photographs can be large |
| WebP | Web images, including transparent images | Some upload forms do not accept it |
Converting PNG to JPG
JPEG cannot store transparent pixels. Image File Tools composites transparent areas onto the background color you choose—white by default. Use the preview to check logos, shadows and antialiased edges before downloading.
A graphic with only a few colors may be smaller as a PNG than a JPG. Conversion is not a guarantee of a smaller file.
Converting WebP to JPG
A downloaded WebP can look fine in a browser but be rejected by a form that asks for JPEG. Converting it changes its encoding, not just the filename. Renaming “.webp” to “.jpg” does not make it a JPEG.
Converting JPG to PNG
Changing a JPEG into PNG does not recover detail lost through JPEG compression. It may make the file larger. Choose PNG when a workflow needs that format, not as a way to restore the original photograph.
Check the result, not a promised percentage
File sizes vary with the image and your browser’s encoder. Image File Tools reports measured sizes and lets you compare images. We do not promise that every conversion will save a particular percentage.
Know which format you need?
Convert an image