Tools for Self-Publishing Author
Format a manuscript, size the cover, check an ISBN, build the interior and the EPUB, and work out print cost and royalty before you upload.
Publishing a book yourself is a chain of small technical jobs that each have a hard requirement: a page count the printer accepts, a spine width that depends on the paper, a cover file the right size, an ISBN that checks out, an ebook file that opens everywhere. These tools follow that order, from the manuscript to the files you upload, so a mistake is caught before the platform rejects the file.
Manuscript Formatter (Shunn)
Turn pasted text or .docx, .md and .txt chapters into a standard Shunn-style manuscript .docx with a title page and running head.
Book Page Count Estimator
Estimate printed page count from word count, trim size, type and margins, or work backward from a page target to words.
Book Interior Maker
Turn manuscript chapters into a print-style interior PDF with trim size, margins, page numbers, running heads and a page-flip preview.
Book Spine and Cover Size Calculator
Estimate spine width and full wrap-cover size with bleed for KDP, IngramSpark and Lulu, with a to-scale layout preview.
Print Cost and Royalty Calculator
Work out the printing cost of a paperback, what you earn per copy at a list price, the price for a target royalty and the copies needed to earn back your costs.
ISBN Checker and Converter
Validate ISBN-10 and ISBN-13 check digits, convert between them, add hyphens and see the barcode digits, singly or in bulk.
Copyright Page Maker
Build a book's copyright page from a form and get a one-page PDF at your trim size, plus copyable text and HTML.
EPUB Maker
Turn .docx, .md and .txt chapters into a finished EPUB 3 e-book with cover, details and a reading preview.
EPUB Checker
Check an .epub in your browser for structure, metadata, navigation, missing files, alt text, cover and accessibility problems.
Book Description HTML Formatter
Turn plain text into the HTML tags a book store description accepts, or clean existing HTML, with a preview and a 4,000-character check.
ONIX Metadata Generator
Fill in a book metadata form and get a checked ONIX 3.0 XML file with ISBN-13 validation, prices, subjects and a live preview.
PDF Bookmarks Editor
Edit a PDF's bookmarks as a tree: rename, reorder, indent, delete or add one at a page, then download the PDF.
Low-Content Book Interior Maker
Make lined, dot grid, graph, checklist or blank interior pages for notebooks, journals and planners, with the right inside margin for your page count.
ACX Audiobook Checker
Check an audiobook chapter against the ACX numbers: loudness, peak, noise floor, sample rate and MP3 bit rate, then fix and save a compliant MP3.