PayPal JavaScript SDK
The PayPal JavaScript SDK is a client-side library that enables developers to integrate PayPal payment processing directly into web applications. It provides pre-built UI components like buttons and hosted fields for secure payment collection, handling authentication, and processing transactions without requiring server-side code for the front-end flow. This SDK simplifies adding PayPal, Venmo, and credit/debit card payments to websites and single-page applications.
Developers should use the PayPal JavaScript SDK when building e-commerce sites, donation platforms, or subscription services that need a secure, PCI-compliant way to accept payments with minimal backend complexity. It's ideal for scenarios requiring a seamless user experience, such as one-click checkouts or embedded payment forms, and supports global payment methods including PayPal, Venmo, and major credit cards. Use it to reduce development time and leverage PayPal's fraud protection and compliance features.