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EPUB to MOBI

Convert EPUB ebook files to MOBI format for compatibility with older Kindle e-readers. MOBI is Kindle's legacy ebook format. Note: modern Kindle devices (2022+) support EPUB directly via Send to Kindle, making this conversion unnecessary for newer devices.

📚 EPUB to MOBI Conversion

MOBI is Kindle's legacy format. Modern Kindles (2022+) natively support EPUB — check if your device supports it first.

For advanced ebook conversion between proprietary formats, we recommend Calibre — a free, open-source ebook manager that converts between virtually all ebook formats including MOBI, AZW3, EPUB, PDF, and more.

Download Calibre (free) →

Upload a EPUB file

Coming soon — use Calibre for now

Frequently Asked Questions

Which Kindle devices require MOBI format?▼
Older Kindle Paperwhite (pre-2022), Kindle Keyboard, Kindle Touch, and Kindle Fire devices that have not been updated. Modern Kindle devices (2022 onwards) support EPUB via Send to Kindle.
Is there any quality or content loss converting EPUB to MOBI?▼
No. Both EPUB and MOBI use the same underlying HTML-based content format. Text, images, and chapter structure are preserved faithfully.
Should I use this for new Kindle devices?▼
If you have a 2022 or newer Kindle, you do not need to convert. Send the EPUB directly to your Kindle using the Send to Kindle app or email service.
Does it work on DRM-protected EPUB files?▼
No. Only DRM-free EPUB files can be converted. DRM-protected books from commercial stores cannot be converted.
Is the conversion done in the browser?▼
Yes. All processing happens locally in your browser. No file is uploaded to any server.