Free Book Search & ISBN Lookup

Search 30+ million books by title, author, or ISBN. AI cannot accurately recall book details - we pull from the live Open Library catalog.

Find Any Book in Seconds

Enter a title, author, or 10/13-digit ISBN. Get covers, publisher, year, page count, subjects, and instant links to Open Library, Google Books, Amazon, and your local library.

ISBN format: 10 digits (e.g. 0140449264) or 13 digits (e.g. 9780140449266). ISBN-10 starting with 978 is auto-converted to ISBN-13.
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Book details

Why Use This Book Search

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30+ Million Books

Search the entire Open Library catalog, the world's largest open book database. Includes out-of-print, rare, and international titles.

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ISBN-10 & ISBN-13

Scan or type any 10 or 13 digit ISBN barcode from the back of any book. Get the exact edition, publisher, and binding details.

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Open Library, WorldCat & More

One click takes you to Open Library (free borrow), Google Books preview, Amazon, and your local library via WorldCat.

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100% Private

All searches go directly from your browser to the Open Library API. We never log, store, or track your queries.

How to Search Books

  1. Pick a search mode using the buttons above: Title, Author, ISBN, or All (combined)
  2. Type your query in the search box. For ISBN mode, type the 10 or 13 digit ISBN
  3. Click Search or press Enter. Results appear in under 2 seconds
  4. Click any result card to see full details, description, and links to buy or borrow from your library

Where to Find a Book After You Find It

Every result links to multiple services so you can choose:

  • Open Library - Free digital borrow (Internet Archive lending library, where available)
  • Google Books - Preview pages, find nearby libraries, see reviews
  • WorldCat - Search your local library catalog worldwide (the OCLC union catalog)
  • Amazon - Buy new or used (where available)
  • Open Library Page - Full bibliographic record, all editions, author bio

What AI Cannot Do Here

Large language models like ChatGPT, Claude, and Gemini regularly hallucinate book details: wrong ISBNs, wrong publishers, wrong page counts, and even books that do not exist. The ISBN database is the only authoritative source for what was actually printed, when, and by whom. This tool queries the live Open Library catalog in real time - no guessing, no fabrication, no login.

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Frequently Asked Questions

How does Free Book Search & ISBN Lookup work?

Search 30+ million books by title, author or ISBN-10/ISBN-13. Covers, publisher, year, page count and subjects from the live Open Library catalog. Everything runs locally in your browser for instant results and maximum privacy.

Is my data private when I use Free Book Search & ISBN Lookup?

Yes. Free Book Search & ISBN Lookup runs entirely in your browser using client-side JavaScript. Your input is never uploaded to any server, never logged, and never shared. Closing the tab clears everything from memory.

Do I need to sign up or create an account to use Free Book Search & ISBN Lookup?

No. Free Book Search & ISBN Lookup is 100% free with no signup, no email registration, no payment, and no ads. Open the page and start using it immediately.

Where does the data for Free Book Search & ISBN Lookup come from?

Live data is sourced from public APIs (Open-Meteo for weather, public ephemeris data for astronomy, etc.). Calculations use standard algorithms. No personal data is collected or stored.

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References