Epub Metadata Editor

Fix the title, author, series and description of an Epub so it shows up correctly in your library. Everything happens in your browser. Your book is never uploaded.

Drop your .epub here, or click to choose.

It loads straight into the form below. Nothing is uploaded.

Your book never leaves your device. Reading and saving the metadata both happen entirely in your browser using WebAssembly. Nothing is uploaded.

What you can edit

This editor changes the Dublin Core metadata inside the Epub’s OPF file: the title, author, publisher, language, publication date, description, rights and ISBN, plus the series name and number (stored using the Calibre convention that most readers understand). The book’s actual content is left untouched. Only the metadata block is rewritten, and the result is repackaged as a valid Epub. It all happens online in the page, with nothing to install: no Calibre, no Sigil.

Why it matters

E-readers and library apps sort and display your books by this metadata. A wrong author, a missing series number, or a title with junk in it can scatter a series across your shelf. Fixing the metadata once makes everything line up.