I need to validate an ISIN!

You will find below an online ISIN validator available as a Google Apps Script

You can use it to validate an ISIN against the syntax described on What is an ISIN?.
Just provide an ISIN and click on "Validate", and the tool will do the validation work for you (even giving you an explanation if the ISIN is not valid)!

Do not hesitate to contact me if you want to use my validator on your site and/or get its source code (Javascript)!

Online ISIN validator

ISIN validator

Did you find this tool useful?

If my ISIN validator was useful to you, why not telling me (privately or publicly)?