Your download will start in a few seconds. If it does not, click here.

Would you like to receive notifications about CMP ISBN Validator updates by email?
View your Download Basket and register for free here.
CMP ISBN Validator has been added to your Download Basket.

This Applet will help you interconvert, tidy up, and validate ISBN-10 and ISBN-13s (International Standard Book Numbers). It tidies them into standard form with the dashes in the correct places (the rules where they go are quite complicated). It also validates the group number and the check digit.

« BACK