Step 1 - if you don't have a subscription, read the Get Started page.
Step 2 - click the 'browse' button below to find and select the ONIX file you would like to validate.
Step 3 - click the 'upload file' button.
Step 4 - view the validation report. If the file doesn't validate, try modifying the file and then uploading the ONIX file.
Note: To avoid problems, always make a backup copy of your ONIX file before making modifications.
* Always make sure you've used the correct case. For example, the reference tag <Productidentifier> will not be accepted. Use <ProductIdentifier>!
* If you're content does not follow the DTD, rearrange your elements according to the ONIX for books documentation.
* Remember to include the release attribute in the <ONIXMessage> tag, i.e. <ONIXMessage release="3.0">.