JPG vs PNG: Which Image Format Should I Use?
JPG is usually a practical choice for photographs. PNG is often better for transparency, screenshots with crisp text, simple graphics, or images where lossless encoding matters.
What to do
Choose based on the image, not the extension alone. For a photo on a website, JPG or WebP is often efficient. For a transparent logo, PNG may be more appropriate. The simplest next step is to JPG to PNG. If the issue is actually about png to jpg, see PNG to JPG as well.
Why this happens
Image problems often come from three separate variables: pixel dimensions, encoded file size and file format. Changing one does not automatically solve the others. A very large photo may need resizing even when its format is already JPG; a transparent graphic may need PNG or WebP even when the file size is acceptable; and an upload limit may be measured in megabytes rather than pixels.
Before editing, check the requirements of the place where the image will be used. That gives you a concrete target and reduces unnecessary quality loss. When possible, keep the original file and create a delivery copy for the specific destination.
Common questions
Is PNG higher quality than JPG?
PNG is lossless, so it does not introduce lossy compression artifacts in the same way JPG can. That does not mean every PNG looks better for every use.
Why are PNG photos often large?
PNG preserves image information efficiently for some graphics but is not generally as compact as JPG for photographic content.
Can JPG have transparency?
No. JPG does not support an alpha transparency channel.