Where can I sell digital products with no fee?
Updated
The short answer
There is nowhere with no fee at all. Every platform takes something somewhere: a share of each sale, a monthly subscription, or card processing, which is charged on every plan everywhere and never waived. What you can choose is which of those you pay and when.
Anything advertised as fee-free has simply moved the charge somewhere less obvious.
The three places a charge hides
The platform cut, taken from each sale. A monthly plan, charged whether you sell or not. And payment processing, which belongs to the card networks rather than the platform.
Some platforms also charge for payouts, for currency conversion, or for apps that add delivery. Add those before you compare.
What "no fee" usually means
Usually it means no monthly fee. That is a genuine and useful thing, because it costs nothing in a month with no sales.
Occasionally it means the fee is added to the buyer’s total at checkout instead of taken from yours. That is not free either — it comes out of your conversion rate.
How to actually pay the least
Sell on a no-monthly-fee storefront while volume is low, and move to a flat plan only when your sales times the percentage gap exceed the monthly cost.
Then raise your price. A higher price moves your take-home far more than any fee difference between platforms.