Windows
Compatible applications
Quick Facts
Basic information about this file format
Extension
.ARW
File Type
Sony Alpha Raw
Category
Image
Best first step
Use compatible software
Quick Summary
A practical overview of the .arw file format
ARW files are raw image files created by Sony digital cameras. They contain minimally processed data directly from the camera's sensor. This means that the ARW file retains all the original information captured by the camera, including details about the exposure settings, white balance, and other c…
File extension
.ARW
File type
Sony Alpha Raw
Category
Image
Recommended action
Open with a trusted compatible app
How to open a .arw file
Start with a trusted app that supports this format
- Check the file extension carefully and confirm that the file name really ends with .arw.
- 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- Update the application if the file was created by a newer version of the software.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 .arw file?
File extension details and usage information
ARW files are raw image files created by Sony digital cameras. They contain minimally processed data directly from the camera's sensor. This means that the ARW file retains all the original information captured by the camera, including details about the exposure settings, white balance, and other camera settings. Unlike JPEG files, which are compressed and processed by the camera, ARW files are uncompressed and unprocessed, offering photographers greater flexibility in post-processing. This allows for more precise adjustments to color, exposure, and other parameters without sacrificing image quality. Because ARW files contain so much data, they are typically larger than JPEG files. They are often used by professional photographers and serious amateurs who want to have maximum control over the final look of their images. ARW files need to be processed using specialized software to be viewed and edited, as standard image viewers may not support the format. The post-processing workflow typically involves adjusting the image parameters and then exporting the image to a more widely compatible format like JPEG or TIFF.
Software Compatibility
Programs that may open or work with .arw files
macOS
Compatible applications
Linux
Compatible applications
Mobile
Mobile applications
Can .arw files be converted?
Options for saving or exporting this file to another format
In many cases, a .arw 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 .arw file.
Why can't I open a .arw file?
Common reasons this file type may not open correctly
Wrong software
The file may require a specific program that supports the .arw 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 .arw files
To open a .arw file, use software that supports this file format.
- Adobe Photoshop
- Adobe Lightroom
- Capture One
- Sony Imaging Edge
- RawTherapee
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 .arw 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.