Free tools for self-published authors
Six tools, no sign-up, nothing uploaded. Pick the job you need to do today.
Metadata Manager & Checker
Check your book title, subtitle, keywords and description against Amazon KDP rules, and save every book's details in one place on your own device.
Open the toolRoyalty & Print Cost Calculator
Work out KDP printing cost, minimum price and royalty for paperback, hardcover and ebook, and compare B&N Press, IngramSpark, Lulu and Draft2Digital.
Open the toolCover & Spine Calculator
Calculate paperback spine width, full wrap cover size, bleed and pixel dimensions for every standard KDP trim size, using KDP's published formulas.
Open the toolInterior PDF Checker
Check your interior PDF's page count, page size and bleed against KDP before you upload. It runs in your browser, so your file never leaves your device.
Open the toolMulti-Platform Sales Dashboard
Combine sales reports from Amazon KDP, Lulu, Barnes & Noble Press, IngramSpark and more into one dashboard with totals by platform, month and book.
Open the toolBook Description Builder
Turn your notes into a hook-first book description for fiction, nonfiction or children's books, then check it against Amazon's description rules.
Open the toolWhich tool should you start with?
Start with the problem you have today. Each tool answers one question and shows how it got there.
- Planning a price? Use the royalty and print cost calculator to see what a paperback, hardcover or ebook pays after printing cost.
- Briefing a cover designer? The cover and spine calculator gives the full wrap size, bleed and pixel dimensions for your trim size and page count.
- About to upload? Run the interior PDF checker and the metadata checker first to catch the mistakes that cause rejections.
- Writing the sales page? The description builder turns your notes into a hook-first description that follows Amazon's rules.
- Tracking income? The sales dashboard combines CSV reports from every platform.
How the tools stay private and accurate
All six tools run in your browser. Files and numbers are not uploaded. Platform figures live in one data file, each with a link to the official page and the date we checked it, so you can see the rules and sources behind every result. Read the editorial policy to see how we keep them current.
Results are planning estimates. Confirm the final figure on the platform before you publish. Our blog explains the rules behind each tool in plain language.