Payment Processing

PayPal is an online payment system that enables individuals and businesses to send and receive payments online. It provides a secure and convenient way to make transactions, with features such as payment processing, invoicing, and account management.

✦ Best for small e-commerce businesses

Hyperswitch is an open-source, PCI-compliant payments platform that enables connectivity to multiple payment, payout, fraud, vault, and tokenization providers. It uplifts authorization with intelligent routing and revenue recovery, reducing payment processing costs with cost observability and payment ops with reconciliation.

✦ Best for fintechs seeking flexible payment integrations

Square is a payment processing and point-of-sale system designed for businesses of all sizes. It provides a range of tools and services to help businesses manage their payments, sales, and customer relationships. With Square, businesses can accept payments, track sales, and manage their inventory and customer data all in one place.

✦ Best for small to medium-sized businesses

BTCPay Server is a free, open‑source payment processor that lets merchants accept Bitcoin and other cryptocurrencies without third‑party fees. It runs on your own server, giving you full control over funds and data. Designed for e‑commerce businesses, BTCPay Server integrates with popular shopping platforms and wallets, providing a secure, privacy‑focused checkout experience while eliminating payment‑gateway costs.

✦ Best for tech-savvy e-commerce businesses