EPUB to AZW3
Convert EPUB eBooks to AZW3 (KF8) with advanced typography, embedded fonts, and CSS3 for the best Kindle reading experience.
Free & unlimited
Mode
Processed on our servers and deleted right after. Never stored or shared.
About this tool
- 1
Upload an EPUB file
Select a DRM-free .epub eBook for conversion to the modern Kindle format.
- 2
Adjust settings
Optionally update the book title, author, or cover image.
- 3
Convert to AZW3
The EPUB is transformed into Kindle Format 8 (AZW3) with enhanced styling support.
- 4
Transfer to Kindle
Download the AZW3 file and sideload it via USB or Send to Kindle.
- AZW3 supports more CSS styling than MOBI, resulting in better-looking books on Kindle.
- Use AZW3 instead of MOBI for Kindle Paperwhite, Oasis, and newer models for the best experience.
- Embedded fonts in the EPUB are carried over to the AZW3 output.
- If your Kindle firmware is up to date, AZW3 will render drop caps and advanced formatting correctly.
- Outputs Kindle Format 8 (KF8/AZW3)
- Supports advanced CSS including embedded fonts and drop caps
- Preserves SVG graphics and MathML where supported
- Handles EPUB 2 and EPUB 3 input
- Get the highest-quality Kindle reading experience from EPUB source files.
- Convert self-published EPUBs for testing on Kindle devices before publishing to Amazon.
- Sideload library books or free eBooks onto a Kindle with superior formatting.
AZW3 (KF8) is the newer Kindle format with full CSS support, better typography, and smaller file sizes. MOBI is the legacy format with limited styling.
Amazon's Send to Kindle service may convert the file. For guaranteed results, sideload via USB.
Yes. AZW3 supports both reflowable and fixed-layout eBooks.