EPUB Metadata Editor

EPUB Metadata Editor is a dedicated desktop tool for editing EPUB2 and EPUB3
package metadata, replacing or designing ebook cover artwork, and validating
local ebook collections without altering chapter layout or breaking container
compliance.

Key Features:
- OPF Dublin Core Editor: Read and update dc:title, dc:creator, dc:publisher,
dc:language, dc:identifier (ISBN), dc:date, dc:subject tags, dc:description,
and extended series/collection tags while writing mimetype first as an
uncompressed ZIP_STORED entry.
- Cover Art Replacer & Studio: Inspect current cover dimensions and format,
replace covers from PNG or JPEG images, or compose high-resolution cover art
with built-in gradient templates and typography, updating manifest items and
cover meta references cleanly.
- Batch Ebook Inspector & Writer: Scan folders into a catalog table, verify
EPUB mimetype and OPF container structure, apply batch updates safely, and
export CSV or JSON catalog reports.

Disclaimer: EPUB Metadata Editor is an independent open-source project by TC Studio and is not affiliated with, endorsed by, or sponsored by Sigil.