Windows
Compatible applications
Quick Facts
Basic information about this file format
Extension
.AZW
File Type
Amazon Kindle eBook File
Category
Data
Best first step
Use compatible software
Quick Summary
A practical overview of the .azw file format
The AZW file format is a proprietary ebook format developed by Amazon for use on its Kindle e-readers and Kindle apps. It is based on the Mobipocket format but includes digital rights management (DRM) restrictions to protect copyrighted content. AZW files can contain text, images, and formatting, a…
File extension
.AZW
File type
Amazon Kindle eBook File
Category
Data
Recommended action
Open with a trusted compatible app
How to open a .azw file
Start with a trusted app that supports this format
- Check the file extension carefully and confirm that the file name really ends with .azw.
- 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- Update the application if the file was created by a newer version of the software.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 .azw file?
File extension details and usage information
The AZW file format is a proprietary ebook format developed by Amazon for use on its Kindle e-readers and Kindle apps. It is based on the Mobipocket format but includes digital rights management (DRM) restrictions to protect copyrighted content. AZW files can contain text, images, and formatting, and they are designed to be easily readable on small screens. The format supports features like bookmarks, annotations, and dictionary lookups. While AZW was the primary format for Kindle ebooks for many years, it has largely been superseded by the KF8 (AZW3) and KFX formats, which offer improved formatting and features. However, AZW files are still supported by Kindle devices and apps, and they can be converted to other ebook formats using various software tools. The DRM protection on AZW files can make it difficult to read them on non-Kindle devices without removing the DRM, which may be illegal depending on the copyright laws in your jurisdiction. The AZW format is optimized for reading on e-ink displays, providing a comfortable reading experience with adjustable font sizes and styles.
Software Compatibility
Programs that may open or work with .azw files
macOS
Compatible applications
Linux
Compatible applications
Mobile
Mobile applications
Can .azw files be converted?
Options for saving or exporting this file to another format
In many cases, a .azw 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 .azw file.
Why can't I open a .azw file?
Common reasons this file type may not open correctly
Wrong software
The file may require a specific program that supports the .azw 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 .azw files
To open a .azw file, use software that supports this file format.
- Kindle for PC
- Calibre
- Mobipocket Reader
- Kindle for Mac
- Okular (with plugins)
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 .azw 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.