Free ISBN Barcode Generator for Books and Self-Publishing
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Every book sold in bookstores or through online retail needs an ISBN barcode on the back cover. The ISBN is the barcode that gets scanned at the register and queried by library systems, distributors, and Amazon.
If you are self-publishing through KDP, IngramSpark, Lulu, or another print-on-demand platform, you may need to supply your own barcode image. This free tool generates print-ready ISBN barcodes (EAN-13 format) from your 13-digit ISBN — no cost, no account.
What Format Is an ISBN Barcode?
An ISBN barcode is an EAN-13 barcode. The 978 or 979 prefix used by ISBNs was reserved by GS1 specifically for books. So ISBN-13 and EAN-13 are the same format — the "Bookland" EAN.
ISBN-10 (10-digit ISBNs used before 2007) convert to ISBN-13 by prepending 978 and recalculating the check digit. This tool accepts 13-digit ISBNs directly.
| ISBN Type | Digits | Prefix | In Use Since |
|---|---|---|---|
| ISBN-10 | 10 | None (implied) | Pre-2007 |
| ISBN-13 | 13 | 978 or 979 | 2007-present |
All new ISBNs issued today are ISBN-13. If you have an ISBN-10, convert it by adding 978 at the front and recalculating the last digit using the EAN-13 check digit formula.
How to Generate Your ISBN Barcode
- Open the barcode generator and select EAN13 from the format dropdown
- Enter your 13-digit ISBN (starting with 978 or 979)
- The barcode renders instantly — the 13th check digit is validated automatically
- Set bar height to at least 69px (standard book barcode height is approximately 25.9mm)
- Download as SVG for submission to KDP, IngramSpark, or your cover designer
SVG is strongly recommended over PNG for book covers. Cover design software (InDesign, Affinity Publisher, even Canva) imports SVG cleanly and scales to the exact required size without any pixelation at print resolution.
Sell Custom Apparel — We Handle Printing & Free ShippingWhere to Place the ISBN Barcode on a Book Cover
The back cover, bottom right corner — that is the universal standard for book barcodes. Most book cover templates have a barcode placeholder pre-positioned there.
- Standard size: 37mm wide x 26mm tall at 100% magnification
- White background: Always place the barcode on a solid white background. Light-colored or white patterns behind the barcode interfere with scanning. Most templates include a white barcode box.
- Quiet zones: Maintain at least 3mm of white space on the left and right sides of the barcode bars. The generator includes these quiet zones in the SVG.
- KDP requirement: Amazon KDP covers must include an ISBN barcode if the book is in expanded distribution. KDP generates one for you if you use their cover creator, but if you upload your own cover, the barcode must be included.
How to Get an ISBN for Your Book
In the United States, ISBNs are purchased through Bowker (myidentifiers.com):
| Option | Cost | Notes |
|---|---|---|
| Single ISBN | ~$125 | For one book in one format |
| 10 ISBNs | ~$295 | Better value if publishing multiple formats |
| 100 ISBNs | ~$575 | Best per-unit cost for prolific authors |
| KDP free ISBN | $0 | Publisher is listed as Amazon (limits distribution) |
| IngramSpark ISBN | $0 | Publisher listed as IngramSpark |
Using a free ISBN from KDP or IngramSpark means they are listed as the publisher of record. For most indie authors, this has no practical impact. If having your own imprint listed matters to you, purchase your own ISBNs from Bowker.
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Open Free Barcode GeneratorFrequently Asked Questions
Does KDP require me to provide my own ISBN barcode image?
Only if you upload a completely custom cover file. If you use KDP Cover Creator, the barcode is placed automatically. If you upload a PDF or image cover, KDP recommends leaving the barcode box blank and they will insert the barcode, or you can include it yourself using this generator.
Can I use the same ISBN barcode for the ebook and print book?
No. Each format (print, ebook, audiobook) requires a separate ISBN. The barcode you generate here is for the print edition only. Ebooks typically do not display a visible barcode.
Is an ISBN barcode the same as a barcode I would use for retail products?
Yes and no. The barcode format is EAN-13, which is the same used for retail products. The 978/979 prefix is reserved exclusively for books (Bookland). Retail product EAN-13 barcodes use different country prefixes.
Chris has been in digital marketing for twelve years as an independent consultant. He covers SEO tools, meta-tag generators, and content optimization — writing for marketers who need practical tools, not theory.
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