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Format Guide

JPG, PNG, or WebP: Which Image Format Should You Use?

Image formats are not interchangeable labels. The format you choose affects file size, transparency, sharpness, and where the file can be used.

6 min readImage formatsBack to guides

Use JPG for everyday photos

JPG is widely supported and usually produces small files for photos with many colors. It is a dependable choice for product photos, article images, and email attachments.

The tradeoff is that JPG is lossy and does not support transparency. If you compress too heavily, edges and gradients may start to show artifacts.

  • Best for photos and mixed-color scenes.
  • Not suitable when transparent backgrounds are required.
  • Check quality when text or sharp graphics are present.

Use PNG for transparency and crisp edges

PNG keeps sharp edges and supports transparency, which makes it helpful for logos, screenshots, interface images, and cut-out graphics.

PNG files can become large for photos, so it is not always the best publishing format when speed matters.

  • Best for transparent assets and screenshots.
  • Useful when crisp text or interface lines matter.
  • Can be heavy for large photographic images.

Use WebP when the destination supports it

WebP often creates smaller files than JPG or PNG while keeping good visual quality. It can also support transparency, which makes it flexible for websites.

Compatibility is much better than it used to be, but you should still think about where the file will be uploaded or opened before choosing it.

  • Great for modern websites and lightweight delivery.
  • Useful for both photos and transparent graphics.
  • Check platform support when submitting files to older systems.