Amazon Kindle EPUB Fix

Amazon's Send to Kindle service has support for EPUB files, however, for historical reasons, it still assumes ISO-8859-1 encoding if no encoding is specified. This creates malformed formatting errors for special characters. It is also pretty strict when it comes to EPUB format validation.

This tool will try to fix your EPUB to be able to use with Send to Kindle. It currently tries to fix these problems:

Privacy: The book is processed locally in your browser. We do not upload your file anywhere.

Warning: This tool come at no warranty. Please still keep your original EPUB. We do not guarantee that the resulting file will be valid EPUB file, but it should.

Useful Tool: KTool.io — Send web articles, newsletters & RSS feeds to Kindle

Select your EPUB

Multiple files allowed.

Version History

Source code is available on GitHub.