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JPG vs PNG: which should you use?

12 October 2026

The short answer

Use JPG for photographs and PNG for graphics, screenshots, and anything that needs transparency.

Why JPG exists

JPG (JPEG) uses lossy compression: it throws away detail your eye barely notices to make files dramatically smaller. A 12-megapixel photo might be 30 MB as a raw bitmap but 3 MB as a JPG. That is why every camera and phone in the world saves photos as JPG.

The trade-off is that every time you re-save a JPG, it loses a little more quality. Keep your original, and only convert a copy.

Why PNG exists

PNG uses lossless compression: every pixel is preserved exactly. That makes it perfect for:

  • Screenshots with sharp text
  • Logos and icons
  • Images with transparent backgrounds
  • Anything you plan to edit again later

The downside is size. A PNG of a photo can be five to ten times larger than the equivalent JPG.

A quick decision table

SituationBest format
Photo for a websiteJPG (or WebP)
ScreenshotPNG
Logo with transparencyPNG
Image to edit repeatedlyPNG
Emailing lots of photosJPG

Converting between them

You can convert JPG to PNG or PNG to JPG right here on ConvertPics — everything happens in your browser, so your images never leave your device. Try the PNG to JPG converter or the JPG to PNG converter.