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<a href="https://shouldiuse.io/vs/freeisbn/myidentifiers">FreeISBN vs MyIdentifiers on Should I Use It</a>

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FreeISBN versus MyIdentifiers
Compare	FreeISBN	MyIdentifiers
Verdict	Depends	Depends
Best for	Budget self-publishing authors	Self-publishers going wide beyond Amazon
Who it's not for	Authors wanting their own imprint as publisher of record	Amazon-only authors. KDP's free ISBN is fine
Privacy	No known public vulnerabilities found in the sources reviewed; one scanner flags unverified social links.^⁴	Suffered a 2018 breach with stolen card data; site now advertises industry-standard encryption but has no public security page.¹⁵
Support quality	No public evidence found	No direct evidence either way
Public sentiment	Review pages exist on Trustpilot and ProvenExpert, but public sources surface no detailed verbatim user feedback.^³	Self-publishers treat Bowker as a necessary evil: the only official US ISBN source, but clunky and overpriced.¹³
Biggest gotcha	Guess: Resold ISBNs may carry the reseller's imprint as publisher of record, not yours . confirm first.^⁹	Card data was stolen in the 2018 breach; monitor statements if you buy.¹⁶

Pick FreeISBN when

Budget self-publishing authors
Authors avoiding Bowker's $125 single-ISBN price
Indie presses needing multiple cheap ISBNs
Wide-distribution authors avoiding store lock-in

When FreeISBN is not a fit

Authors wanting their own imprint as publisher of record
Anyone wanting a truly free ISBN . use KDP or Draft2Digital
Buyers requiring security-vetted vendors (scanner-flagged site)
Traditional publishers . buy direct from the official agency

Pick MyIdentifiers when

Self-publishers going wide beyond Amazon
Small presses wanting their own imprint ISBNs
US authors needing portable, publisher-owned ISBNs

When MyIdentifiers is not a fit

Amazon-only authors. KDP's free ISBN is fine
Non-US authors, use your own national ISBN agency
Anyone expecting a polished, modern web experience
Bulk buyers shopping on price, there's no competition here

Sources

FreeISBN . Open Publishing Resources and Advocacyfreeisbn.com
official
FreeISBN Reviews & Experiences (ProvenExpert)provenexpert.com
review
Trustpilot reviews of freeisbn.comtrustpilot.com
review
Freeisbn.com Review: Unverified Social Links (Gridinsoft)gridinsoft.com
security
Cost of ISBN in 2026: $125 Single vs $295 for 10-Packalpacaauthors.com
news
The Best Consulting Companies . Jul 2026 (The Manifest)themanifest.com
news
Amazon listing published by FREEISBN.comamazon.sg
news
Draft2Digital Formatter Review (2026)bookbird.io
review
Publisher Rights in Self-Publishing: Who Really Owns Your ISBNfreeisbn.com
official
FreeISBN . 530-B Harkle Road, Ste 100, Santa Fe, NM (about.me)about.me
official
Bowker | Identifier Services (official site)myidentifiers.com
official
Buy ISBNs | Bowkermyidentifiers.com
official
Which is the real Bowker site for ISBN? . Redditreddit.com
review
MyIdentifiers ratings . WorthEPennymyidentifiers.worthepenny.com
review
Bowker Investigating Breach of ISBN Site . Publishers Weeklypublishersweekly.com
security
Bowker's ISBN Site Has Been Hacked . The Digital Readerthe-digital-reader.com
security