Submit an EPUB document for validation. Your file must be 10MB or less.
Submit an EPUB document for validation. Your file must be 10MB or less.
This site uses EPUBCheck to provide validation information for EPUB 2 and 3 documents. If you are creating commercial EPUBs in volume, you must install EPUBCheck instead of using this site.
Want to contribute? Go to https://github.com/w3c/epubcheck/wiki/Contribute.