Free tools
Free self-publishing tools
Three small tools for the print edition: the spine, the barcode, and the page. They run in your browser, need no account, and keep nothing. Each one uses the publisher’s own published figures and links to them.
- Book spine width calculatorSpine width in inches and millimetres for KDP, IngramSpark, Lulu and Barnes & Noble Press, and the full cover wrap with bleed.Open the tool
- ISBN barcode generatorCheck an ISBN-13 or convert an ISBN-10, then download an EAN-13 barcode with an optional price add-on, as SVG or PNG.Open the tool
- KDP trim size and margin checkerPick a trim and a page count: the gutter and outside margins KDP asks for, the page size with bleed, and whether the size is standard.Open the tool
The whole book, not one number
The WriterDesk keeps the trim, the spine estimate, the ISBN and the barcode on one book, and checks them against the house you chose before anything leaves.
Format the whole book on the WriterDesk