Convert EPUB to AZW3
Turn EPUB files into AZW3 in seconds — free.
- Works directly in your browser
- Keeps the original formatting and quality
- Download your file in seconds
- No signup, no watermark, no limits
- Supports batches of EPUB files up to 100 MB each
Upload your files
Drop EPUB files here
Files up to 100 MB · deleted automatically after 4 hours
How the conversion works
Three steps between your EPUB file and a finished AZW3.
Add your EPUB file
Drag and drop it, or browse your device. Multiple files are fine.
Confirm AZW3 settings
Choose quality and naming, then start the conversion.
Download
Save the AZW3 file, or scan the QR code to grab it on your phone.
About converting EPUB to AZW3
EPUB and AZW3 solve different problems, which is why this conversion is so common. Our converter reads the structure of your EPUB file and rebuilds it as a valid AZW3 file rather than simply renaming it, so the result opens cleanly in the apps you already use.
EPUB is the open standard for e-books. AZW3 is Amazon's current Kindle e-book format.
The converter sits in our ebook converters toolkit alongside EPUB, MOBI, AZW3, FB2, LIT and more. Nothing is installed, nothing is stored, and the output carries no watermark.