Standards toolkit
Validators, converters and check-digit calculators for books, retail and GS1 supply chains.
Validate & convert
ValidityValid ISBN-13
ISBN-139780306406157
ISBN-100306406152
Registration groupEnglish language (US, UK, AU, NZ…)
Check digit7
Need the barcode? Use the generator with the ISBN-13 symbology for a bookstore-ready Bookland EAN.
Book metadata lookup
Fetches title, authors and publisher from the Open Library catalogue.