License Key Retrieval

Hi all!

I’m trying to install NLP on a computer I recently purchased, but I can’t figure out how to get a copy of my already purchased license key. Checked my old emails, but didn’t turn anything up. Anyone know if there’s a way to get a copy of the code right from the vendor?

Thanks much.


Be sure to search your email for messages from “gumroad.” You can also search by the subject line: “You got Negative Lab Pro.”

If nothing turns up in email, you go to and create and account using the same email that you used to purchase. Once you’ve created an account, it should show you your past purchases, and you can find your receipt (which has the license key).

If neither of those work, you can email me at and I will do a manual search.


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Thanks, Nate! Appreciate the help.

Edit: That did the trick–license key popped right up!