Earlier quoted context omitted.
FreeFillableForms (.com) is 100% free, has no income limits, has every IRS schedule & form. It's basically backed by the IRS and implemented by Intuit et al, but appears independent. It works a little better every year, but you do still have to manually carry over some numbers from form to form. I've been using it for the last 8 years at least. I don't love it to death, but if it wasn't available I'd do my own paper…
I think the URL is freefilefillableforms.com (note the "file", the "FreeFillableForms" domain is parked by someone) based on some light googling and a contact email I saw on the irs.gov site. Glad a digital equivalent to paper forms exists, the US tax code is far less hellish than I previously believed.
If you are a typical tech employee and have highish income, incentive stock options, interest, dividends, capital gains, etc. don't think you can use freefillableforms to do your taxes in a couple hours.