Klarna Docs
API and SDKsSupport
Guide
Sign in with Klarna - iOS
In this step-by-step guide you will learn how to integrate Sign in with Klarna into your iOS app.
Mobile
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iOS
Guide
JavaScript SDK events
Learn about the events exposed by On-site messaging.
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Live
SDK
Guide
Integrate multistep Express checkout
Learn how to integrate the multistep Express checkout to support more robust checkout options.
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Guide
Klarna On-site messaging app for Shopify
Learn how to display Klarna’s On-site messaging in your Shopify store.
Shopify
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Guide
Purchase experience
Let’s deep dive into the best way to present Klarna to your customers.
Payments
Live
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Guide
How to enable Sign in with Klarna in PrestaShop
This guide explains how to add Sign in with Klarna to your PrestaShop store.
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Prestashop
Guide
Express button mobile integration
You can integrate Express button into your mobile app.
Deprecated
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Guide
How to integrate Express checkout
Follow this guide to integrate Express checkout.
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Guide
Sign in with Klarna
In this step-by-step guide you will learn how to integrate Sign in with Klarna into your Android app.
Mobile
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Android
Guide
Before you start with Express Checkout
Ready to offer Klarna Express Checkout to your customers? Here's what you need to know before integrating the product with your store's website.
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Live
Guide
Integrate using Klarna Web SDK
Here you can find the steps, examples, and code snippets you require for On-site messaging integration using our JavaScript library.
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Live
SDK
Guide
Customize placements with CSS
This guide provides instructions on how to style the On-site messaging placements that appear on your pages through CSS to align them with the look and feel of your page.
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Live
Guide
App Block placements
How to add On-Site Messaging on your Online Store 2.0 on Shopify.
Shopify
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Guide
How to install Express Checkout in WooCommerce
This guide explains how to add Express Checkout to your WooCommerce store.
WooCommerce
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