Bookow barcode generator alternatives

4 isbn & metadata tools for self-published authors, similar to Bookow barcode generator. Compare pricing and platforms, then pick what fits your workflow.

Bowker (MyIdentifiers)myidentifiers.com

Paid

Official US ISBN agency (single & bulk ISBNs + barcodes).

Web

Free retailer ISBNskdp.amazon.com / lulu.com

Free

KDP/Lulu/D2D provide free ISBNs (tied to their imprint).

Web

International ISBN Agencyisbn-international.org

Paid

Directory of country-specific ISBN agencies.

Web

Nielsen UK ISBN Storenielsenisbnstore.com

Paid

Official UK ISBN agency.

Web