Free tools for book resellers

Compare and export up to 500 ISBNs without a subscription

Check buyback and purchase prices in bulk, identify possible book-flipping opportunities, and export a report you can work with.

No account required · ISBN-10 and ISBN-13 supported · CSV export included

Comparing one book?

Enter an ISBN to compare current sell, buy, or rental offers.

Return to single-book comparison

Normalize your inventory

Paste a list or upload CSV. BookTrapper validates checksums, converts ISBN-10 values, and removes duplicates before searching.

Compare without paid gates

Search up to 500 unique ISBNs, filter by vendor or minimum profit, and review the strongest price opportunities first.

Export and verify

Download a CSV, then confirm condition rules, shipping, minimum order, and payment details on the vendor scorecard.

Built for better sourcing decisions

BookTrapper ranks offers by price rather than sponsorship. Apparent profit is a starting point—not a guarantee—so every report links to available vendor terms and clearly labels offer freshness.

  • Sell, buy, and arbitrage views
  • Profitable-only and minimum-price filters
  • Private progress link and completion email
  • Price-neutral rankings with affiliate disclosure

Ready to check your inventory?

Run a free report for up to 500 ISBNs and export the results.

Start free bulk ISBN search