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
Build pricing pages that display localized prices, including taxes and discount calculation
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

Include and initialize Paddle.js

Paddle.Initialize() method

Open a checkout

Paddle.Checkout.open() method

HTML data attributes

Build pricing pages

Paddle.PricePreview() method

Paddle.TransactionPreview()

Work with an open checkout

Paddle.Checkout.updateCheckout() method

Paddle.Checkout.updateItems() method

Work with Paddle Retain

Paddle.Retain.initCancellationFlow() method

Paddle.Retain.demo() method

Tutorials

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

Build an overlay checkout

Build an inline checkout

Build a pricing page

AI Assistant

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Looking for help with a purchase? Visit paddle.net.

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