Convert MOBI to AZW3
Turn MOBI 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 MOBI files up to 100 MB each
Upload your files
Drop MOBI files here
Files up to 100 MB · deleted automatically after 4 hours
How the conversion works
Three steps between your MOBI file and a finished AZW3.
Add your MOBI 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 MOBI to AZW3
MOBI and AZW3 solve different problems, which is why this conversion is so common. Our converter reads the structure of your MOBI 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.
MOBI is an older e-book format used by Kindle devices. 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.