JPG vs JPEG: Is There a Difference? (And How to Convert .jpe and .pjpeg)
imgmend Team
AI Image Tools
JPG and JPEG are the same image format; the only difference is the length of the file extension. Here is why both exist and how to convert odd variants like .jpe.
JPG and JPEG are exactly the same image format: both stand for Joint Photographic Experts Group, and the only difference is that .jpg is a shorter version of the .jpeg extension. You can rename one to the other without changing the picture.
| Quick Facts | |
|---|---|
| Difference | None in quality or format; .jpg is shorter |
| Why two extensions | Older Windows systems limited extensions to three letters |
| Other variants | .jpe, .jfif, .pjpeg are also JPEG files |
| Convert | Rename the extension, or Save As JPG |
Why Are There Two Names?
Early versions of Windows only allowed three-letter file extensions, so JPEG was shortened to JPG. Other systems kept four letters. Today both are treated as the same format everywhere.
How to Convert JPEG to JPG
- Make file name extensions visible in File Explorer (View → File name extensions).
- Click the file, press F2 and change
.jpegto.jpg.
Nothing is re-compressed, so quality is unchanged.
What About .jpe, .jfif and .pjpeg?
These are other extensions used for JPEG data. Renaming them to .jpg generally works. For step-by-step help with JFIF files, see how to convert JFIF to JPG or PNG. If you need a PNG, open the file in Paint or Preview and save as PNG.
Convert Many Files at Once
The free JPEG to JPG converter changes .jpeg, .jpe, .pjpeg and .jfif files in your browser, up to 20 at a time.
If You Want a Smaller JPG
The extension does not affect file size. To make an image smaller, lower its quality or dimensions in the imgmend compressor, which outputs JPG and shows the new size before you download.
Frequently Asked Questions
Is JPG the same as JPEG?
Yes. They are the same format with different extension lengths.
Which is better, JPG or JPEG?
Neither. The picture quality and file size are identical.
Can I rename .jpeg to .jpg?
Yes. Renaming is safe and does not change the image.
How do I convert .jpe to JPG?
Rename the file to .jpg, or open it in an editor and save as JPG.
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