Kindle Previewer is a graphical user interface tool that emulates how books display across Kindle devices and apps. Kindle Previewer makes it easy for publishers to preview the layout of a book and make sure its text displays properly for any orientation or font size to ensure publishers produce and submit the highest quality Kindle books.
As a best practice we recommend you use the Kindle Previewer to review how their books look across all Kindle devices and apps.
Highlights of Kindle Previewer functionality:
Ability to preview your content across Kindle devices and apps;
Support for previewing Kindle Text Pop Ups and Kindle Panel Views;
Accurate rendering of your content across Kindle devices and apps;
Faster previewing through features like Auto flip mode, Image flip mode;
Auto updates for future enhancements.