What is a JPG file? How to Open, Convert JPG or JPEG File?

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You would have heard of JPG and JPEG file formats when you are dealing with images. JPG and JPEG are one of the most commonly used image file formats.

But, many don’t know how to open JPG and JPEG file formats and which program to use to convert JPG and JPEG files to a different file format like PNG, GIF, or SVG.

What is a JPG (JPEG) file?

JPG (or JPEG) is a popular digital image format that saves a file in a compressed image format in the compression ratio of 10:1.

It is standardized and created by the Joint Photographic Experts Group (JPEG) that reduces the section of the image into blocks of pixels.

Because of its popularity and small size, it is a widely used file format for sharing photos, printing, and editing purposes.

For instance, the most popular Coral Draw, Adobe Photoshop, and GIMP are used to edit photos in JPG (or JPEG) format.

How to open JPG (or JPEG) file?

You can open JPG or JPEG file with all programs that support images.

Moreover, many software programs or applications are available for free or for commercial use.

You can use these applications to view and edit images for desktop and mobile platforms.

The application programs open and edit JPG or JPEG files in Windows, Mac, and Linux operating systems.

  • Microsoft Windows Photos (Windows)
  • Microsoft Paint (Windows)
  • Adobe Photoshop (Windows, Mac)
  • CorelDraw (Windows, Mac)
  • Apple Preview (Mac)
  • GIMP (Windows, Mac, Linux)
  • Shotwell (Linux).

Additionally, you can view JPG or JPEG files in all your web browser by dragging or dropping the image into your browser window.

Also, most mobile devices support JPG or JPEG file format. It means that you can view JPG or JPEG file when you receive through emails or text messages.

It may also be possible that some of the programs or websites cannot recognize the JPEG format. In such a case, you can rename the file from JPEG to JPG.

How to convert a JPG or JPEG file?

You can use two methods to convert JPG or JPEG files into other formats.

The easiest method is to open JPG or JPEG file using an image viewer or image editor and then save the file into the desired format.

The other method is to use the image converter program. This is because the image converter program has so many formats to convert your JPG file.

The famous free image convertor program is:


FileZigZag is an online image convertor program that will save your current JPG or JPEG file into multiple other formats.

The supported format includes PNG, TIF/TIFF, BMP, GIF, TGA, DPX, PCX, and YUV.

Resizing app

Resizing App (available as a Chrome extension) will convert your output format into PNG, TIFF, BMP, and WEBP.


Zamzar is a well-known app that will help you convert JPG or JPEG files into multiple formats.

It is also capable of converting JPG files into MS Word format like DOC or DOCX. Further, you can save your JPG file into PDF, EPS, ICO, and WEBP.

Microsoft Paint

Microsoft Paint is a quick way to save your JPG or JPEG file into formats like PNG, BMP, DIB, TIFF, and more.

Convertio is used to convert JPG to EPS.

AConvert.com is an online image converter that works for most formats.

Difference between JPG and JPEG

There is no difference between JPG and JPEG, except an extra letter.

Joint Photographic Experts Group represents both JPG and JPEG image format, and there is no difference between them.

Actually, the difference in file extension has to do with the earlier version of Windows, where more than three-letter in the extension is not accepted.

The official file extension when it was launched was JPEG (Joint Photographic Expert Group).

But, as explained above, the earlier version of the Windows operating system doesn’t accept more than three-letter in the extension. So, JPEG is changed to JPG.

Similarly, HTML is changed to HTM in the Windows Operating system.

But, there is no limitation in the MAC version. So, JPEG remains the same in the MAC OS version.

Later on, Windows Operating System has removed the limitation of three-letter with their upcoming version. However, JPG has become popular among users.

Now, Windows accept both JPEG and JPG version. You can even rename it from JPEG to JPG or vice versa without any change in quality and functionality.