Paddle Billing

Paddle.js reference

Integrate Paddle and Retain with your app or website using Paddle.js.

Paddle.js is a lightweight JavaScript library that lets you build rich, integrated subscription billing experiences using Paddle.

Use Paddle.js to:

  • Open checkouts, complete with items and prefilled customer data
  • Interact with opened checkouts and display checkout information on-page
  • Create upgrade workflows using an inline checkout
  • Integrate with Retain, automatically reducing churn

Set up Paddle.js

Open a checkout

Work with a checkout


Get step-by-step instructions on how to build a complete checkout.