Top 4 Open-Source Alternatives to Fattmerchant

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.

VoPay’s Fintech-as-a-Service platform allows any company to embed financial services and payment capabilities into their existing applications, products or services through a single and scalable API.

Brocard allows you to create an unlimited number of virtual cards for paying for advertising and other online payments, manage a team of buyers, choose from 20+ bins for various tasks, and enjoy convenient API for integrations.

The Magento 2 one step checkout with only one- page form helps customers checkout easily as well as saves their time and efforts spent on the last step to complete the purchase.