Chrome, Edge, and Brave extension that reads verification codes and sign-in links from Gmail accounts. One account is free. A one-time purchase unlocks more. For each new code it can auto-fill the page, copy the code, or only keep it in the popup. A verification link can be opened from the popup. Mail is read in the browser with the Gmail readonly scope. Checkout for extra accounts is ExtensionPay and Stripe.
See SETUP.md for the Google Cloud project, test users, and how to install it unpacked.
You can remove the purchase code and build a copy for yourself. Selling it, charging for a copy, or profiting from it is reserved to the author. See LICENSE.