* [Swell.js v5.4.1](https://github.com/swellstores/swell-js) – Universal JavaScript SDK for accessing store and customer data via a headless ecommerce frontend API.

* [Checkout JS v1.763.0](https://github.com/bigcommerce/checkout-js) – Browser-based UI for seamless checkout completion on BigCommerce stores.

* [PayPal JS Monorepo @paypal/react-paypal...](https://github.com/paypal/paypal-js) – Collection of libraries to simplify integration with PayPal's JavaScript SDK.