epubcheck
https://github.com/w3c/epubcheck
Java
The conformance checker for EPUB publications
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- Issues
- Better identify the category of error messages (e.g. "CSS parsing error")
- Parsing error in class attributes doesn't report the line number
- option to expand an epub
- Implement a better XML output format
- EPUBCheck not reporting missing the # in refines="ID" in opf
- Separate lists of contributors and translators?
- Add scriptable components support
- cmyk not reported in reflowable epub
- per-rendition validation
- force save option
- Docs
- Java not yet supported