Change an EPUB's title, author, series, language, description and cover without converting it. Everything happens in your browser, so the book never leaves your device and the text stays exactly as it was. Afterwards, check it with the EPUB Validator or make a printable copy with EPUB to PDF.
It opens right in your browser - nothing is uploaded. Up to 300 MB.
Resized to fit 1600 x 2560 px, the size stores recommend.
Library apps, Kindle and Kobo sort books by the title, author and series stored inside the file.
Wrong details mean a messy library: "Unknown author", books in the wrong series order, or a blank cover. Fixing it takes a minute and works in every reading app.
Going to a Kindle next? See the Send to Kindle guide.
The EPUB is opened and saved in your browser - nothing is uploaded.
Only the package file and the cover image are touched. Chapters, styling and fonts stay byte-for-byte the same.
No. The editor runs entirely in your browser, so your book never leaves your device.
No. Only the book's details (the OPF package file) and, if you choose, the cover image are changed. Everything else is copied exactly.
Open the EPUB, click Choose a new cover and pick a JPG or PNG. It is resized to fit 1600 x 2560 px, the size stores recommend, then saved into the book.
The series is saved two ways: the Calibre field (read by Calibre, Kobo and KOReader) and the EPUB 3 collection (read by Apple Books and others).
Kindle MOBI and AZW3 files need converting first - use MOBI to EPUB or AZW3 to EPUB, edit, then send the EPUB to your Kindle.
No. Books with store copy protection cannot be edited.