EPUB Metadata Editor
View and edit EPUB ebook metadata: title, author, publisher, language, description. Edit Dublin Core fields in the OPF without breaking the book.
Drop your .epub file here or click to upload
EPUB ebooks only • Max 50MB
EPUB Metadata Editor Tutorial
Why edit EPUB metadata?
EPUB files store all their bibliographic data in an OPF (Open Packaging Format) file inside the zip. This is what shows up in your e-reader as title, author, and publisher.
- Fix scanned books: Free EPUBs from Project Gutenberg or Calibre often have wrong or incomplete metadata
- Self-published authors: Update title, author name, ISBN before uploading to retailers
- Library organization: Make your e-reader sort books correctly by author
- Translation/edition info: Edit language, publisher, date
How does it work?
An .epub is a ZIP file with a META-INF/container.xml pointing to the main .opf package file. The OPF contains a <metadata> block with Dublin Core fields. This tool finds the OPF, edits only the metadata block, and rebuilds the .epub. Book content (chapters, images, fonts) is preserved verbatim.
Editable fields (Dublin Core)
title— Book titlecreator— Author(s); separate multiple with line breakscontributor— Translator, illustrator, etc.publisher— Publishing housedate— Publication date (e.g.2023or2023-05-12)language— ISO 639 code (en,zh,ja)subject— Genre/category tagsdescription— Synopsis or blurbrights— Copyright statementidentifier— ISBN, UUID, etc.
EPUB 2 and EPUB 3 are both supported. The unique identifier (book ID) is preserved automatically. For multi-value fields like author or subject, separate entries with new lines.