WebP vs JPG vs PNG — Best Image Format for Websites

The three formats at a glance

JPG: lossy compression for photos, no transparency, opens everywhere.

PNG: lossless, supports transparency, crisp text and edges, but large for photos.

WebP: lossy or lossless, supports transparency, smaller than both JPG and PNG at comparable quality.

Why file size matters

Images are usually the heaviest part of a web page. Smaller images make pages load faster on mobile, and page speed affects both search rankings and how many visitors bounce. A photo saved as WebP is typically 25–35% smaller than the JPG, and transparent PNGs often shrink even more.

Which format for what

Product photos, banners, blog images: WebP at 80–90% quality, or JPG where maximum compatibility matters.

Logos, icons, cut-outs with transparency: WebP or PNG — never JPG, which fills transparent areas.

Screenshots and charts: PNG, or high-quality WebP.

Files people will download or receive by email: JPG or PNG so they open anywhere.

Browser support and caveats

Chrome, Edge, Firefox and Safari (iOS 14 / macOS Big Sur and later) all display WebP, so it's safe for normal websites. Some older desktop apps, document editors and upload forms still reject WebP, so hand people JPG or PNG files.

AVIF can be even smaller, but WebP has broader tool support.

How to convert to WebP

Drop images into anyview.dev and click WEBP. Set quality to 80–90% under “Options” for a good size/quality balance, then grab everything with “Download all (ZIP)”. Files never leave your browser.