Ex Libris Lookup
Know your books. Own your library.
Ex Libris Lookup is a fast, private reference tool for readers, students, and librarians. Find the identifiers and details behind any book, build a personal library that lives entirely on your device, and track your reading — all without accounts, ads, or tracking.
What you can do
Find any book
Search by title, author, keyword, or ISBN — or scan a book's barcode with your camera and skip typing entirely.
Library identifiers at your fingertips
Look up Dewey Decimal (DDC), ISBN, LCCN, ISSN, and ASIN numbers for cataloging and reference, and tap to copy any of them in a moment.
Your own library, on your device
Save books to a personal library with shelves, tags, and bulk adding — no cloud, no sign-in, fully offline.
Scan whole shelves with AI (Pro)
Point your camera at a bookshelf and let AI read the spines — add dozens of books in one shot. Pro also brings smart, rule-based collections and AI shelf reports.
Track your reading
Mark books as want-to-read, reading, read, or did-not-finish, log your page progress, rate finished titles, and watch streaks and trends on the statistics dashboard.
Loans, locations & citations
Lend books without losing them, map your library room by room, and generate clean MLA, APA, Chicago, or BibTeX citations for any book.
Privacy by design
No account required — your library lives on your device, not in the cloud.
Book searches go only to open catalogs (Open Library and Google Books) to fetch results.
Pro's AI features send only the shelf photo or book list needed to generate results — nothing is sold or shared.
No ads, no third-party trackers — ever.
Ready to try Ex Libris Lookup?
Download it today — no account required, your data stays on your device.
Download on the App Store