Free Tools for book publishers

Useful online tools to help with your publishing projects. All free, with no sign-up required.

Generate print-ready ISBN barcodes for your book covers

Search and verify ISBN numbers. Get book details, and validate ISBNs instantly.

Convert European GSM paper weights to US pounds (lb). Essential for international publishers working with US printers.

Convert US paper weights (lb) to European GSM. Perfect for US publishers working with European printers.

More Tools Coming Soon

We're working on additional tools to help streamline your publishing workflow:

Calculate book spine width based on page count and paper weight

Coming Soon

Estimate printing costs for different quantities and specifications

Coming Soon

No registration required, no hidden fees. Just helpful tools for publishers.

Based on real needs from publishers and printing industry requirements.

Use our tools on any device – desktop, tablet, or smartphone.

We're always looking for ways to help publishers work more efficiently.

Join publishers and authors who are already saving time and increasing profits with Print Trail