PayPal - PayPal is the faster, safer way to pay online without sharing financial details, send and receive money or accept credit and debit cards as a seller
Gumroad - An all-in-one solution to sell your work and grow your audience.
Stripe - Online payment processing for internet businesses. Stripe is a suite of payment APIs that powers commerce for online businesses of all sizes. Use Stripe’s payment platform to accept and process payments online for easy-to-use commerce solutions.
Easy Digital Downloads - Easy Digital Downloads is a complete eCommerce solution for WordPress.
Braintree - An all-in-one solution to accept, process, and split payments in your mobile app or online - from small business to large enterprise.
Ko-fi - Ko-fi offers a friendly way for content creators to get paid for their work.