Validates ISBN-10 and ISBN-13 book identifiers using their respective checksum algorithms. Converts ISBN-10 to ISBN-13 (adds 978 prefix and recalculates check digit) and extracts registration group, registrant, and publication codes. Accepts input with hyphens, spaces, or no separators.
Enter an ISBN to validate it and convert between ISBN-10 and ISBN-13 formats. For validating IBANs or credit card numbers, see the related IBAN Validator and Credit Card Validator.
ISBN-10
Input
0-306-40615-2
Output
Valid ISBN-10 | ISBN-13: 978-0-306-40615-7
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