Free tools for book resellers

Turn an ISBN list into a smarter sourcing decision

Compare and export up to 500 ISBNs at once across sell, buy, and arbitrage prices. Find the strongest opportunities, filter the noise, and build a report you can actually use.

Start free bulk searchSee how it works
  • No account required
  • No subscription
  • CSV export included

Quick price check

Comparing one book?

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

Open the single-book comparison tool
Have a list? Use bulk search for faster inventory analysis and downloadable results.
500ISBNs per report
$0Subscription cost
1 CSVReady to export

From raw list to useful report

A faster way to evaluate inventory

Spend less time checking books one by one and more time acting on the prices that matter.

01

Add your inventory

Paste ISBNs or upload a CSV. We validate checksums, convert ISBN-10 values, and remove duplicates before searching.

02

Compare the market

Check up to 500 unique ISBNs, switch between sell, buy, and arbitrage views, and surface stronger opportunities first.

03

Filter and export

Narrow results by vendor, price, or potential profit, then download a CSV for sourcing, repricing, or deeper review.

Built for real sourcing work

See the useful books first

BookTrapper organizes a large ISBN list into a report you can scan quickly, filter confidently, and take with you.

  • Best available offer and vendor for each ISBN
  • Profitable-only and minimum-price filters
  • Private progress link and completion email
  • Downloadable CSV for your own workflow
Explore the bulk search tool

Offers are ranked by price rather than sponsorship. Prices, condition rules, shipping, and vendor terms can change, so verify details before completing a transaction.

Inventory opportunity reportComplete
Books checked148
Opportunities32
Potential profit$286.40
ISBNBest vendorOpportunity
9780134685991BooksRun$28.75
9780321982384TextbookRush$19.20
9781119456339BlueRocketBooks$15.85
9781260084504eCampus$12.40

Keep sharpening your process

Reseller tools and field guides

Compare vendors, understand arbitrage, or scan ISBNs while you source.

Compare vendor scorecards

Review available payment methods, policies, and vendor details before you choose an offer.

View scorecards →

Learn textbook arbitrage

Understand potential margin, common risks, and what to verify before buying inventory.

Read the guide →

Scan books while sourcing

Use the barcode scanner app to check ISBNs faster when you are in a store or warehouse.

Explore the scanner →

Your next report is free

Ready to find the value hiding in your inventory?

Run up to 500 ISBNs, review the strongest results, and export your report—without creating an account.

Start free bulk ISBN search