Ebook Conversion
Convert MOBI to AZW3 Online — Free
Fast, free MOBI to AZW3 converter. No registration required.
またはインポート元
200万以上のファイル変換
数千人のユーザーに信頼されています
安全な転送
HTTPS暗号化アップロード
プライバシー優先
処理後にファイルを自動削除
登録不要
すぐに変換を開始
どこでも動作
あらゆるブラウザ、あらゆるデバイス
変換方法
1
Upload your .mobi 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.
MOBIとは？
MOBI is an ebook format used by Amazon Kindle devices. While Amazon now prefers EPUB, MOBI remains compatible with older Kindle models.
形式の詳細
- 正式名称
- Mobipocket eBook
- 拡張子
- .mobi
主な特徴
- Kindle compatible
- DRM support
- Ebook standard
- Amazon format
AZW3とは？
AZW3 (also known as KF8) is Amazon's modern ebook format. It supports enhanced typography and layout features compared to MOBI.
形式の詳細
- 正式名称
- Amazon Kindle Format
- 拡張子
- .azw3
主な特徴
- Kindle native
- Enhanced layout
- Modern features
- Amazon ecosystem
MOBIとAZW3の比較
| 特徴 | MOBI | AZW3 |
|---|---|---|
| 正式名称 | Mobipocket eBook | Amazon Kindle Format |
| 拡張子 | .mobi | .azw3 |
| 最適な用途 | Kindle compatible | Kindle native |
よくある質問
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 with up to 5 conversions per day. No registration or watermarks. Pro users get unlimited conversions and batch processing.
Yes. Upload from any device with a browser — iPhone, Android, tablet, or desktop. No app installation required.