Free tools for authors
Everything from pricing your paperback to checking your audiobook files, in one place. Calculators need no account. Tools that work on your own files run in your browser (nothing is uploaded) and are free for members.
Tired of typing the same details into every tool? With a book plan (free with an account), you type them once and each tool fills itself in. New to self-publishing? Start with the book launch checklist: every step in order, each with the tool or guide for it.
No tool matches that. Try another word, or the guides.
Plan and price
Sizes, ISBNs, and what you earn per copy.
-
Word count to page count
How many pages your book will be at each trim size and font size, checked against real typesetting, and straight on to the spine width and print cost.
No account needed
-
Print royalty calculator
Printing cost and what you earn per paperback or hardcover on KDP, IngramSpark, D2D and B&N, side by side, in each marketplace's currency.
No account needed
-
KDP royalty calculator
What you earn per sale on Amazon.com: ebook at 35% or 70% (with the delivery cost), paperback at 50% or 60% after printing.
No account needed
-
Kindle prices for every Amazon store
Your Amazon.com ebook price in: a tidy price for every Amazon store that keeps the 70% royalty, and a check of the prices you set against each store's band.
No account needed
-
Omnibus and large print planner
Your series word counts in: every book, a box-set omnibus and large-print editions, with pages, spine, whether KDP and IngramSpark print them, printing cost and the price for your royalty.
No account needed
-
Book trim sizes by printer
Every paperback and hardcover size KDP, IngramSpark, B&N Press, Lulu, Bookvault and D2D offer, side by side.
No account needed
-
ISBN planner
How many ISBNs you need, when a free KDP or IngramSpark ISBN is fine, and what a block costs where you live.
No account needed
Print books
Spine, cover, barcode, and a check before you upload.
-
Spine width calculator and print file checker
Spine width, full cover size and a cover template for KDP, IngramSpark, B&N Press, Lulu, Bookvault and D2D, and a check of your cover and interior PDFs.
Your files · in your browser · members
-
Book margin calculator
Page size with and without bleed, and the inside and outside margins for your page count, for KDP, IngramSpark, Lulu and B&N, plus one setup that works for all of them.
No account needed
-
Why was my book rejected?
Paste the message from KDP, IngramSpark, Lulu or B&N: what it means in plain English, the guide that fixes it and the tool that checks it.
No account needed
-
Compare two proofs
The old and new PDF of your interior or cover: every word that changed, which pages reflowed, a page count change, and anything that moved without the words changing. Or two EPUBs, chapter by chapter.
Your files · in your browser · members
-
Cover image to print PDF
Got your cover as a PNG or JPG? Turn it into the one-page PDF KDP and IngramSpark ask for, at the exact size, in RGB or CMYK.
Your files · in your browser · members
-
RGB to CMYK converter
Any image to CMYK for print, colour-managed, ink capped at 240%, same size and resolution, as a TIFF or PDF. See what changes in print first, and whether your printer needs it.
Your files · in your browser · members
-
ISBN barcode generator
Your ISBN as a print-ready back-cover barcode, with the optional price add-on. You don't need to buy one.
Your files · in your browser · members
Ebooks and book files
From manuscript to the files the stores take.
-
Manuscript checker
Your Word manuscript in: tracked changes left in, tabs and spaces used for indents, manual line breaks, empty paragraphs, mixed quotes and dashes, scene breaks and chapter numbers, each with what to do.
Your files · in your browser · members
-
Make your book files
Your Word, RTF or OpenOffice manuscript in; an EPUB ebook and a print-ready interior PDF out, with a contents page you check first.
Your files · in your browser · members
-
Copyright page generator
The copyright page for your book: copyright line, rights, fiction disclaimer, an ISBN for every format, edition, imprint and credits.
No account needed
-
EPUB checker
Before you upload: structure, cover, table of contents, broken links, images over Apple's limit and the styles KDP asks you to leave alone, explained in plain English, store by store.
Your files · in your browser · members
-
Book file optimiser
A bloated EPUB made smaller without changing what readers see: text compressed, oversized pictures scaled down, checked again after. A print PDF's photos made smaller, or a cover brought under a size limit.
Your files · in your browser · members
-
Ebook cover checker
Will KDP, Apple, Kobo, Google Play, B&N, D2D and Lulu take your ebook cover? Size, shape, format, colour, and how it looks small.
Your files · in your browser · members
-
Ebook cover resizer
Crop, fit or stretch your cover to each store's size, and see exactly what's kept and whether it's being enlarged.
Your files · in your browser · members
Your store listing
The words readers see before they buy.
-
Book metadata checker
Title, subtitle, description and keywords against KDP, IngramSpark, Apple, Kobo and Google Play: their limits, and the words they reject.
No account needed
-
Blurb checker
Length against KDP's 4,000-character limit, sentence length, reading ease, and what KDP doesn't allow: links, review quotes, prices, emojis.
No account needed
-
Thema subject finder
The Thema subject codes IngramSpark asks for, found in plain words: search or browse, see where each code sits and how to use it, and copy your choice.
No account needed
-
Book description formatter
Plain text in, the HTML KDP accepts out: paragraphs, bold, italics, lists and headings.
No account needed
Launch
Advance copies and everything up to release day.
-
Promo images from your cover
A 3D paperback or ebook mockup, and images sized for posts, stories, Pinterest, BookBub ads, Amazon A+ Content and your newsletter, all at once.
Your files · in your browser · members
-
Printable promo pack
Bookmarks, postcards, a table sign and a poster from your cover, each with a QR code to your book: PDFs with bleed for a print shop, or several to a sheet to print at home.
Your files · in your browser · members
-
Smart link and QR code
One short link for your book: readers choose their store, with Amazon set to their own country. A QR code for print, campaign tags, and clicks by store and country.
No account needed
-
Book launch plan
Release date in: pre-order, cover reveal, advance copies, newsletter, social posts, launch day and review follow-up, dated, with a calendar file.
No account needed
-
ARC launch timeline
Put in your release date and get a dated plan for your advance copies, from getting the file ready to thanking your readers.
No account needed
-
Review link generator
Links that open the "write a review" page for your book on every Amazon store and on Goodreads, for your back matter and newsletter.
No account needed
-
Book launch checklist
Every step from finished draft to after launch, each with the guide or tool that covers it. Tick them off as you go.
No account needed
After launch
What sold, where, and what your promotions did.
-
Ad break-even calculator
Your royalties and series read-through in: the most a click or a sale from an ad can cost, and the break-even ACoS and ROAS, with Kindle Unlimited reads if you like.
No account needed
-
KDP report reader
Drop in the spreadsheets from KDP's Reports: sales, Kindle Unlimited pages and royalties by book, store and day, what your free promotions did, and series read-through.
Your files · in your browser · members
Audiobooks
Before you upload your chapter files.
Want the how and the why?
The author guides explain KDP, IngramSpark, ISBNs, going wide and how to fix the print errors these tools catch.