JPG

What is a JPG file?

Everything you need to know about the JPG image format — what it is, its pros and cons, and how to convert it for free in your browser.

JPG (or JPEG) is the most common image format for photographs, used by nearly every camera, phone and website.

Created in 1992 by the Joint Photographic Experts Group, it uses lossy compression that discards detail the eye barely notices to shrink files dramatically.

JPG is the right choice for photos and colorful images where small file size matters more than perfect detail or transparency.

Advantages

  • Opens on virtually every device, browser and app.
  • Excellent compression keeps file sizes small.

Drawbacks

  • Lossy compression discards some image detail.
  • No transparency support.

Frequently Asked Questions

Is JPG lossy or lossless?

JPG uses lossy compression, which shrinks files by permanently discarding some image detail.

Does JPG support transparency?

No, JPG does not support transparency; transparent areas are filled with a solid white background.

How do I open or convert a JPG file?

Most image viewers can open JPG files, but for full compatibility you can convert JPG to JPG or PNG right here — free, instant and private in your browser.

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