The Author's Forge
Eight author voices draft complete Kindle novels with you, chapter by chapter.
Free · no account needed
4 free tools for anyone publishing print books.
Spine width, royalty maths, trim sizes, ISBN barcodes. Everything runs in your browser — nothing uploads, nothing costs money, no account needed to try.
The toolbox
4 live
Covers
Spine width calculator
Exact spine width and full cover size for any page count.
Money
Royalty calculator
Printing cost, royalty and margin for a KDP paperback.
Interiors
Trim size and margin guide
Bleed, margins and gutter for every KDP trim size.
Covers
ISBN barcode generator
Scannable EAN-13 barcode for your back cover.
More on the way. Every one of these runs entirely in your browser -- nothing is uploaded, nothing is stored, and none of it needs an account.
Ready to export your interior?
Downloads need an account, and accounts come with any purchase. Your login details arrive by email the moment you buy.
And 18 full apps, included with every account
Meridian
Type a town name and get a location-based book that is yours to publish.
Fact Book Studio
Turns a list of facts into a designed, print-ready book for KDP.
FableForge
Turns one lesson into a children's fable book, cover, Etsy edition and read-along video.
KidBook Studio
Builds illustrated children's books ready for KDP and Etsy.
SpookyCraft
An AI story writer for spooky kids' horror tales, with KDP-ready exports.
PublishKit
An all-in-one KDP studio: interiors, covers and listings in one place.
Color By Line Studio
Turns any image into color-by-line coloring pages for kids.
Color By Number
Turns any image into a print-ready color-by-number interior in about 30 seconds.
Super Bingo Party
Makes printable bingo cards and exports them ready to sell.
Promptcraft
Takes apart a selling Etsy printable and plans your own version page by page.
TubeForge Studio
Turns your books into short promo videos, without showing your face.
StoryDeck
Turns one page of a book into a storytime carousel for TikTok Photo Mode.
Flower Language
Turns any flower name into a cohesive vintage printable set ready to sell on Etsy.
Cozy Kitchen Printable Prompt Studio
Prompts for cozy kitchen printables and coloring pages that come out ready to sell.
AI Kids Storybook
Build a Custom GPT that writes family-friendly storybooks with page-by-page art prompts.
400 Fantasy House Illustration Prompts
Four hundred prompts for complete, consistent fantasy house illustrations.
720 Cute Animal Coloring Pages
A mega pack of 720 cute animal coloring pages for KDP and Etsy.