

Sorry to say, both have failed me. On fax.plus I cannot register because the “Register” button is faded and unclickable. I cannot work out what causes that and what it expects.
Onlinefax.io lets you upload a file without using Google Drive, but then you must login to a Google account to go further. So I’m still looking for options.
Thanks for the tip! I would have dismissed that quickly had I discovered it myself because the pricing page shows $5/month as that cheapest. But in fine print at the bottom there is a free fax option. I have not tested it but it could turn out to be quite useful.