ISBN Hyphenator
Enter an ISBN-10 or ISBN-13 to generate a hyphenated version.
About ISBN Hyphenation
ISBN hyphenation is the process of adding hyphens to an ISBN to make it easier to read and understand. The placement of hyphens is determined by the ISBN's structure, which includes group identifiers, publisher identifiers, title identifiers, and a check digit.
Proper hyphenation is important for clarity and accuracy when communicating ISBNs.

ISBN Registration Groups
ISBNs are managed by registration agencies in different parts of the world. These agencies are assigned specific group identifiers. For a comprehensive list, refer to the List of ISBN registration groups on Wikipedia. Also learn about ISBN Ranges Data.
How to Use the ISBN Hyphenator
- Enter either a 10-digit (ISBN-10) or 13-digit (ISBN-13) number in the input field.
- Click the "Hyphenate" button.
- The hyphenated ISBN will be displayed below the input field.
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ISBN Hyphenator FAQ
- Why hyphenate ISBNs?
Hyphenation makes ISBNs easier to read and reduces errors when manually copying the number. It's also the standard presentation format in publishing. - Is hyphenation mandatory?
While not technically mandatory for machine readability, hyphenation is a widely accepted and expected formatting convention in the publishing industry. - Does hyphenation change the ISBN?
No, hyphens are purely for visual formatting and do not alter the ISBN's numerical value or uniqueness. - Can I hyphenate both ISBN-10 and ISBN-13?
Yes you can, but this tool supports hyphenation for ISBN-13 formats only. You can hyphenate ISBN-10, here is how: First convert it to ISBN-13 then hyphenate the ISBN-13 after that recalculate the ISBN check digit using our check digit calculator. - How accurate are hyphens in the hyphenated ISBN?
Our ISBN Hyphenator Tool uses the official ISBN ranges data provided by the International ISBN Agency, which contains the definitive rules for ISBN registration groups worldwide. By utilizing this authoritative information, our hyphenator ensures precise and accurate placement of hyphens in any ISBN.