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HomeAZW vs MOBI
.azw
.mobi

AZW vs MOBI

Compare Amazon Kindle eBook and Mobipocket eBook formats — understand the key differences and when to use each

Format Overview

AZW

Amazon Kindle eBook

Amazon Kindle eBook (.azw) is a ebook file format.

.azwebook

MOBI

Mobipocket eBook

MOBI is Amazon's legacy eBook format, originally created by Mobipocket and acquired by Amazon for Kindle devices. MOBI supports basic text formatting, images, tables, and bookmarks. While Amazon has transitioned to newer formats (KF8/AZW3), MOBI remains compatible with all Kindle devices and apps. MOBI files are limited compared to EPUB: they don't support video, advanced CSS, or the latest accessibility features. For publishing on Amazon, authors typically upload EPUB or DOCX files, which Amazon converts to its internal format. Converting MOBI to EPUB provides access to a wider range of e-readers and more modern features.

.mobiebook

AZW vs MOBI: Feature Comparison

FeatureAZWMOBI
Full NameAmazon Kindle eBookMobipocket eBook
File Extension.azw.mobi
Categoryebookebook
Free to Convert✓ Yes✓ Yes
Browser Support✓ All Browsers✓ All Browsers
Convert to Each Other✓ Yes✓ Yes

When to Use AZW vs MOBI

Use AZW when you need:

  • •Files in Amazon Kindle eBook format for maximum compatibility
  • •Industry-standard ebook format support
  • •Wide software and platform compatibility

Use MOBI when you need:

  • •Files in Mobipocket eBook format for specific workflows
  • •Optimized ebook format features
  • •Modern format advantages and smaller file sizes

Convert Between Them

AZW MOBIMOBI AZW
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Max. Dateigröße: 2 GB

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Learn More About These Formats

AZW Converter MOBI Converter

Frequently Asked Questions

What is the difference between AZW and MOBI?
AZW (Amazon Kindle eBook) and MOBI (Mobipocket eBook) are both ebook file formats. AZW files use the .azw extension while MOBI uses .mobi. They differ in compression, quality, compatibility, and intended use cases.
Can I convert AZW to MOBI for free?
Yes! Convert999 lets you convert AZW to MOBI completely free, directly in your browser. No file upload to any server, no registration needed — your files stay private on your device.
Which is better, AZW or MOBI?
It depends on your use case. AZW (Amazon Kindle eBook) may be better for certain workflows, while MOBI (Mobipocket eBook) excels in others. Consider factors like file size, quality, software compatibility, and your specific needs.
Is it safe to convert files on Convert999?
Absolutely. Convert999 processes all files 100% locally in your browser. Your files are never uploaded to any server, ensuring complete privacy and security.

AZW Converter

Convert from AZW

MOBI Converter

Convert from MOBI

File Tools

Compress, resize, merge

Convert to AZW

All sources → AZW

Convert to MOBI

All sources → MOBI

Format Statistics

Trends & data 2025

More Format Comparisons

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