Choose your EPUB
Open the converter and upload the ebook you are allowed to process.
EPUB → MOBI
Convert EPUB to MOBI online
Use MOBI when you need compatibility with an older Kindle workflow or application. MyEbook performs the conversion without an account; you should still review the result because older MOBI files support fewer layout features than EPUB.
Open the free converter →How to convert EPUB to MOBI
Select MOBI
Set MOBI as the output format, then start the conversion.
Review the result
Check the cover, headings, images and table of contents before loading it on a device.
MOBI is a legacy format. For newer Kindle software, AZW3 often preserves more formatting. DRM-protected ebooks cannot be converted by this tool.
What can change during conversion?
Fonts and styling
Custom fonts and advanced CSS may be simplified by the MOBI format.
Images
Large images may be resized to fit the target ebook container.
Navigation
A well-formed EPUB table of contents usually produces a better MOBI result.