JPG vs. JPEG — What's the Difference?
Edited by Tayyaba Rehman — By Fiza Rafique — Published on December 31, 2023
Both refer to the same image format used for digital photos, with no difference in meaning or function.
Difference Between JPG and JPEG
Table of Contents
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Key Differences
JPG and JPEG are both acronyms for the same image format called Joint Photographic Experts Group. The format is used for digital images, especially photographs.
JPG became prevalent because earlier versions of Windows required a three-letter file extension. Thus, JPEG was shortened to JPG for compatibility.
Both JPG and JPEG file extensions represent the same compression method for digital images that allows for reducing file size while maintaining quality.
JPG is primarily used in contexts or systems where a three-letter extension is necessary. JPEG is the full acronym and is used more broadly, including in contexts where the extension length is not an issue.
Despite the difference in the number of letters, JPG and JPEG files are interchangeable, and there is no difference in how the images are processed or displayed.
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Comparison Chart
Full Form
Joint Photographic Experts Group (shortened)
Joint Photographic Experts Group
Usage
Primarily with older systems requiring 3-letter extensions
Used more broadly, irrespective of extension length
Extension Length
3 letters
4 letters
Compatibility
Earlier Windows versions
All systems
Function
Image compression and format
Same as JPG
Compare with Definitions
JPG
Most cameras save images in JPG format.
(Standard format)
JPEG
The image was converted to a JPEG format.
(File format)
JPG
The photo was saved as a .jpg file.
(File format)
JPEG
JPEGs are versatile for print and web use.
(Broad usage)
JPG
JPG is popular for web images due to its small size.
(Internet usage)
JPEG
Editing a JPEG can result in quality loss.
(Editing implications)
JPG
Adjusting the JPG quality affects file size.
(Quality control)
JPEG
JPEG is a standard format for digital photography.
(Industry standard)
JPG
JPG files compress photos to save space. (
Data compression)
JPEG
JPEG maintains quality while compressing.
(Balance)
JPEG
A standard algorithm for the compression of digital images.
JPEG
A digital image stored as a file so compressed
A JPEG of a cat.
JPEG
Alternative case form of JPEG
JPEG
A standardized format for storing graphic data in binary computer files, allowing over 16 million different colors. It allows for lossy compression, i. e. the compression of data into a form which re-expands into an image close, but not identical to the original image. Files stored in this format usually carry the extension jpg or jpeg. Compare GIF.
Common Curiosities
Do JPG and JPEG have different qualities?
No, the quality of the image is the same in both formats.
Why do some systems prefer JPG over JPEG?
Older systems required three-letter file extensions, hence the preference for JPG.
Is there a difference between JPG and JPEG?
No, JPG and JPEG refer to the same image format.
Why are there two terms, JPG and JPEG?
JPG was used due to older systems’ limitations of a three-letter extension. JPEG is the full acronym.
Can I use JPG and JPEG interchangeably?
Yes, they are interchangeable and refer to the same image format.
Are JPG and JPEG good for digital photography?
Yes, they are widely used in digital photography due to good quality and compression.
Do JPG and JPEG support transparency?
No, they do not support transparent backgrounds.
Is JPEG the same as JPG2000?
No, JPG2000 is a different, newer format.
Can I use JPG or JPEG for printing photos?
Yes, they are suitable for printing.
Can I convert a PNG to JPG or JPEG?
Yes, you can convert between PNG and JPG/JPEG formats.
Do all image viewers support JPG and JPEG?
Most image viewers and editors support these formats.
Do JPG and JPEG lose quality over time?
No, but repeated editing and saving can degrade quality.
Can I use JPG or JPEG for a website?
Yes, they are popular for web use due to their small file size.
Should I choose JPG or JPEG for a project?
Either can be chosen; they are the same and will function identically.
Are JPG and JPEG files larger than PNG?
Generally, JPG/JPEG files are smaller due to compression.
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Written by
Fiza RafiqueFiza Rafique is a skilled content writer at AskDifference.com, where she meticulously refines and enhances written pieces. Drawing from her vast editorial expertise, Fiza ensures clarity, accuracy, and precision in every article. Passionate about language, she continually seeks to elevate the quality of content for readers worldwide.
Edited by
Tayyaba RehmanTayyaba Rehman is a distinguished writer, currently serving as a primary contributor to askdifference.com. As a researcher in semantics and etymology, Tayyaba's passion for the complexity of languages and their distinctions has found a perfect home on the platform. Tayyaba delves into the intricacies of language, distinguishing between commonly confused words and phrases, thereby providing clarity for readers worldwide.
