Free self-publishing tools, built by real book printers.
Plan, price and prepare your book with practical, free tools — every calculator is a real piece of software, not a marketing block. No account needed.
Book Printing Cost Calculator
Estimate what it really costs to print your book, from a single proof to a full short run.
Open tool →KDP vs Short-Run Calculator
See whether Amazon print-on-demand or your own short run earns you more per book.
Open tool →KDP Royalty Calculator
Work out exactly what Amazon pays you per paperback after KDP's printing cost.
Open tool →Book Profit Calculator
Work out exactly what you keep per book after print costs and retailer discounts.
Open tool →Cover Template Generator
Generate an exact full-cover spread with front, spine, back and bleed for print.
Open tool →Book Cover Mockup Generator
Turn your flat cover into a realistic 3D book mockup you can rotate and download.
Open tool →Book Spine Width Calculator
Calculate your exact spine width in millimetres and inches before you design.
Open tool →Print-Ready PDF Checker
Score your PDF against the exact checks real printers run before press.
Open tool →Cover PDF Checker
Check your cover PDF against the exact full-cover spread your book needs before you send to print.
Open tool →Interior PDF Checker
Check your interior PDF page size, page count and consistency against your chosen trim.
Open tool →ISBN Barcode Generator
Turn your 13-digit ISBN into a print-ready EAN-13 barcode for your back cover.
Open tool →ISBN Checker & Converter
Validate any ISBN and convert between ISBN-10 and ISBN-13 in seconds.
Open tool →ONIX Editor
Build a distributor-ready ONIX 3.0 metadata record from a simple form, then download the XML.
Open tool →Words-to-Pages Converter
Estimate your printed page count from your word count, so you can plan extent and cost.
Open tool →