Convert MOBI to AZW3 Online — Free
Fast, free MOBI to AZW3 converter. No registration required.
Drop files here or click to browse
Supports: MOBI files
Max: 100MB (free) · 2GB (Pro)
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How to Convert
Upload your .mobi file by dragging it into the upload area or clicking to browse.
Choose your output settings. The default settings work great for most files.
Click Convert and download your .azw3 file when it's ready.
What is MOBI?
MOBI is an ebook format used by Amazon Kindle devices. While Amazon now prefers EPUB, MOBI remains compatible with older Kindle models.
Format Details
- Full Name
- Mobipocket eBook
- Extension
- .mobi
Key Features
- Kindle compatible
- DRM support
- Ebook standard
- Amazon format
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
MOBI vs AZW3
| Feature | MOBI | AZW3 |
|---|---|---|
| Full Name | Mobipocket eBook | Amazon Kindle Format |
| Extension | .mobi | .azw3 |
| Best For | Kindle compatible | Kindle native |