Windows
Compatible applications
Quick Facts
Basic information about this file format
Extension
.JPEG
File Type
Joint Photographic Experts Group
Category
Image
Best first step
Use compatible software
Quick Summary
A practical overview of the .jpeg file format
JPEG (Joint Photographic Experts Group) is a widely used method of lossy compression for digital images, particularly for those produced by digital photography. The degree of compression can be adjusted, allowing a selectable trade-off between storage size and image quality. JPEG typically achieves…
File extension
.JPEG
File type
Joint Photographic Experts Group
Category
Image
Recommended action
Open with a trusted compatible app
How to open a .jpeg file
Start with a trusted app that supports this format
- Check the file extension carefully and confirm that the file name really ends with .jpeg.
- Use software that supports this file type. If one app does not work, try another compatible program for the same platform.
- Update the application if the file was created by a newer version of the software.
- Scan files from unknown sources before opening them, especially documents, archives, scripts, installers, and executable files.
What is a .jpeg file?
File extension details and usage information
JPEG (Joint Photographic Experts Group) is a widely used method of lossy compression for digital images, particularly for those produced by digital photography. The degree of compression can be adjusted, allowing a selectable trade-off between storage size and image quality. JPEG typically achieves 10:1 compression with little perceptible loss in image quality. JPEG images are commonly used for storing and transmitting photographic images on the World Wide Web. The format supports 8-bit grayscale and 24-bit color images. JPEG compression works by dividing an image into 8x8 pixel blocks and then applying a Discrete Cosine Transform (DCT) to each block. The DCT converts the spatial representation of the image into a frequency representation. High-frequency components, which are less visually significant, are then discarded, resulting in compression. This lossy compression makes JPEG files smaller than lossless formats like PNG or TIFF, but it also means that some image data is lost each time the image is saved or re-compressed. Repeated editing and saving of a JPEG image can lead to a gradual degradation in image quality, known as compression artifacts. Despite this limitation, JPEG remains a popular choice for its efficient compression and widespread compatibility.
Software Compatibility
Programs that may open or work with .jpeg files
macOS
Compatible applications
Linux
Compatible applications
Mobile
Mobile applications
Can .jpeg files be converted?
Options for saving or exporting this file to another format
In many cases, a .jpeg file can be converted by opening it in compatible software and using an option such as Save As, Export, or Convert. The available output formats depend on the file type and the application used.
- Use the original software that created the file when possible.
- Check whether the application supports exporting to common formats.
- Be careful with online converters when working with private, business, or sensitive files.
- If conversion fails, the file may be corrupted, incomplete, encrypted, or not actually a .jpeg file.
Why can't I open a .jpeg file?
Common reasons this file type may not open correctly
Wrong software
The file may require a specific program that supports the .jpeg format.
Incorrect extension
The file extension may have been renamed manually, even though the actual file format is different.
Corrupted file
The file may be incomplete, damaged during download, or transferred incorrectly.
Outdated app
Your software may need to be updated before it can open newer versions of this file format.
Frequently Asked Questions
Common questions about .jpeg files
To open a .jpeg file, use software that supports this file format.
- Adobe Photoshop
- GIMP
- IrfanView
- Paint.NET
- Windows Photos
Open the file in compatible software and look for options such as Save As, Export, or Convert. If no export option is available, the file may require a specialized converter or the original application that created it.
- Verify that the file extension is correct.
- Install or update compatible software.
- Try another application that supports this format.
- Check whether the file is corrupted, incomplete, or encrypted.
A file extension alone does not guarantee whether a file is safe or unsafe. Only open files from trusted sources, scan unknown files before opening them, and be especially careful with executable, script, archive, and document files.
File safety tips
Use caution with unknown files
Only open files from trusted sources. Before opening a .jpeg file, scan it with antivirus software, verify that the file extension is expected, and avoid running unknown executable, installer, macro-enabled document, or script files.