Drop an EPUB file here
Or click to browse — supports EPUB 2 and EPUB 3.
All processing happens in your browser. The file never leaves your device.
About EPUB word counting
EPUB files are zipped collections of HTML chapters with metadata. This tool unzips the file in your browser, walks the spine in reading order, strips HTML tags, and counts the resulting plain text — so the count matches what a reader actually sees, not the underlying markup.
For Chinese and Japanese EPUBs, the character count is usually what you want. The "words" figure for CJK content treats each CJK character as a word and adds Latin words separately, which roughly matches publishing-industry convention.
FAQ
Is my EPUB uploaded to a server?
No. The file is unzipped and parsed entirely in your browser using JSZip. Your book never leaves your device.
Does it work with DRM-protected EPUB files?
No. DRM-encrypted EPUBs cannot be opened until the DRM is removed. This tool only handles standard, unencrypted .epub files.
How is word count calculated for Chinese or Japanese EPUBs?
For CJK content, each Chinese or Japanese character is treated as a word, and Latin words are added on top. This matches publishing-industry convention. For an exact character count, look at the "Characters" figure.
Why does the count seem different from my e-reader?
E-readers often skip front matter, table of contents, or notes when reporting word counts. This tool counts every chapter in the spine, including TOC pages, copyright notices, and afterwords.
Can I count multiple EPUBs at once?
Use the Batch Word Counter at /file-word-counter — it accepts multiple files of any supported format and aggregates totals.