Ebook Conversion
Convert EPUB to AZW3 Online — Free
Fast, free EPUB to AZW3 converter. No registration required.
3,716 files converted
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How to Convert
1
Upload your .epub file by dragging it into the upload area or clicking to browse.
2
Choose your output settings. The default settings work great for most files.
3
Click Convert and download your .azw3 file when it's ready.
What is EPUB?
EPUB is the most widely supported ebook format. It supports reflowable text that adapts to different screen sizes, making it ideal for e-readers.
Format Details
- Full Name
- Electronic Publication
- Extension
- .epub
Key Features
- Reflowable text
- E-reader standard
- DRM support
- Multimedia
What is AZW3?
AZW3 (also known as KF8) is Amazon's modern ebook format. It supports enhanced typography and layout features compared to MOBI.
Format Details
- Full Name
- Amazon Kindle Format
- Extension
- .azw3
Key Features
- Kindle native
- Enhanced layout
- Modern features
- Amazon ecosystem
EPUB vs AZW3
| Feature | EPUB | AZW3 |
|---|---|---|
| Full Name | Electronic Publication | Amazon Kindle Format |
| Extension | .epub | .azw3 |
| Best For | Reflowable text | Kindle native |
Frequently Asked Questions
Yes. Our converter preserves chapter structure, table of contents, and navigation. Formatting, images, and internal links are maintained when both formats support them.
MOBI and AZW3 formats work natively on Kindle devices. EPUB works on Kobo, Nook, and most other e-readers. PDF works universally but isn't reflowable.
We can only convert DRM-free eBooks. If your file has DRM restrictions, you'll need to remove them before conversion. We don't provide DRM removal tools.
Yes. eBook conversion is free — 5 conversions per day without signup, 20 per day with a free account. No watermarks. Pro users get 100/day plus batch processing.
Yes. Upload from any device with a browser — iPhone, Android, tablet, or desktop. No app installation required.