JPG
JPG is usually best for photos and complex images where small file size matters more than perfect preservation. It uses lossy compression, so repeated saving can reduce quality.
JPG does not support transparency.
PNG
PNG is useful for screenshots, graphics, icons, and images that need transparency. It can preserve sharp edges well, but it is often larger than JPG for photographic images.
Converting a JPG to PNG does not restore quality that was already lost in the JPG.
WebP
WebP can produce small files and supports modern web workflows, but it is not always smaller for every image. The best format depends on the source image and quality setting.
ConvertZiva's image format tools process up to 12 images, 10 MB each, in the browser.
Related ConvertZiva tools
FAQ
Is WebP always better?
No. WebP is often efficient, but the best result depends on the image and settings.
Should screenshots be JPG or PNG?
PNG is often better for screenshots with text or sharp interface edges.