JPG vs. PNG: which image format should you use?
Choose between JPG and PNG for photographs, screenshots, graphics, transparency, editing, sharing, and website performance.
JPG is usually efficient for photographs
JPEG compression removes some image information to reduce the file size. Photographs contain gradual color and brightness changes that often hide this loss well at a sensible quality setting.
Saving and recompressing a JPG repeatedly can add visible artifacts. Keep an original high-quality file when you expect to edit the image again.
PNG preserves precise pixels and transparency
PNG uses lossless compression, so saving the file does not discard image information in the same way as ordinary JPG compression. It is well suited to interface screenshots, diagrams, text-heavy graphics, and images that require a transparent background.
A complex full-color photograph saved as PNG can be much larger than a visually similar JPG, which can slow uploads and web pages without providing a noticeable benefit.
Choose based on the content
File extension alone does not determine quality. Export settings, dimensions, compression level, and the original image all affect the result.
- Photograph for sharing or the web: usually JPG
- Screenshot with text: usually PNG
- Logo with transparent background: PNG or a suitable vector format
- Image that will be edited repeatedly: keep a lossless master
- Smallest modern web delivery: also compare WebP or AVIF support
Do not enlarge a small image to fix quality
Converting a low-resolution JPG to PNG does not restore missing detail. It only changes the container and future compression behavior. Start from the highest-quality original available and resize a copy for the final use.
For a website, choose the smallest file that still looks good at the displayed size. Oversized dimensions can waste more bandwidth than the choice between JPG and PNG.
Frequently asked questions
Does PNG support transparent backgrounds?
Yes. PNG supports an alpha channel for partial or full transparency.
Is PNG always higher quality than JPG?
PNG preserves pixels losslessly, but the best format depends on the image and use. A well-exported JPG can look excellent for photographs at a much smaller size.
Will converting JPG to PNG improve it?
No. Converting cannot recover detail that was already removed by JPG compression.
Sources
Primary and official references used for this guide:
Published August 3, 2026 · Reviewed for clarity and source accuracy.