# How to Embed a Checkout Widget in Any Website

> Guide to embedding a payment checkout widget into any website - HTML, WordPress, React, or website builders. No backend required with Dodo Payments overlay and inline checkout.
- **Author**: Aarthi Poonia
- **Published**: 2026-03-30
- **Category**: Payments, How-To, Developer Tools
- **URL**: https://dodopayments.com/blogs/embed-checkout-widget-website

---

You want a buy button on your website that opens a real checkout, not a redirect to some third-party page. An embedded checkout widget keeps users on your site and converts better. When a customer clicks "Buy Now" and is suddenly whisked away to a different domain with a different design, trust drops. They might wonder if the site is secure or if they are being scammed. By keeping the entire transaction within your own environment, you maintain brand consistency and reduce friction.

Embedding a checkout widget is no longer a complex engineering feat that requires weeks of backend development. Modern payment platforms like Dodo Payments provide tools that allow you to drop a few lines of code into your site and start accepting payments immediately. Whether you are building a custom React application, managing a WordPress blog, or using a no-code builder like Webflow, the process is straightforward. This guide will walk you through every step of embedding a checkout widget into any website.

## The 3 Types of Embedded Checkout

Before you start coding, you need to choose the right type of checkout experience for your users. There are three primary ways to handle payments without forcing a full-page redirect to a competitor's site. Each has its own strengths depending on your business model and technical stack.

> The biggest mistake founders make when setting up payments is treating it as a solved problem. You wire up a gateway, add a checkout button, and assume you are done. Six months later, you are dealing with tax notices, failed renewals, and checkout abandonment from missing local payment methods.
>
> \- Ayush Agarwal, Co-founder & CPTO at Dodo Payments

### 1. Overlay Checkout (Modal)

The overlay checkout is a modal that pops up on top of your existing page. The background is usually dimmed, focusing the user's attention entirely on the payment form. This is the most popular choice for SaaS pricing pages and digital product sales. It feels like a native part of your site because the user never actually leaves the page they were browsing.

### 2. Inline Checkout (Embedded Form)

An inline checkout embeds the payment form directly into your page layout. Instead of a popup, the form lives inside a specific `div` or container on your checkout page. This is ideal for multi-step checkout flows where you want the payment details to appear right after the shipping or account creation steps. It provides the highest level of integration and allows you to build custom order summaries around the form.

### 3. Payment Link Button

While technically a redirect, a payment link button can be styled to look like a native part of your site. When clicked, it takes the user to a hosted checkout page. This is the simplest method to implement and is perfect for email marketing, social media selling, or very simple landing pages where you don't want to manage any JavaScript.

## When to Use Each Checkout Method

Choosing between overlay and inline checkout depends on your user experience goals. If you want to keep the purchase process as fast as possible, the overlay is usually the winner. A user can click a button on your landing page, pay, and be back to your content in seconds. This is why many [no-code stack SaaS](https://dodopayments.com/blogs/no-code-stack-saas-10k-mrr) founders prefer overlays for their initial launches.

Inline checkout is better when you have a dedicated checkout page. If your site has a "Cart" or "Checkout" link in the header, an inline form feels more natural. It allows you to display tax calculations, discount codes, and line items alongside the payment fields. For businesses that need to [sell software online](https://dodopayments.com/blogs/how-to-sell-software-online), the inline method often provides the professional "enterprise" feel that high-ticket customers expect.

Payment links are the fallback for when you cannot run custom scripts. Some website builders or email clients block JavaScript for security reasons. In these cases, a direct link to a hosted checkout page is the only way to [accept online payments](https://dodopayments.com/blogs/how-to-accept-online-payments) reliably.

```mermaid
flowchart TD
    A[User visits website] --> B{Choose Flow}
    B -->|Overlay| C[Click Buy Button]
    C --> D[Modal opens on top]
    D --> E[Payment completed]
    E --> F[Modal closes, user stays on page]

    B -->|Inline| G[Navigate to Checkout Page]
    G --> H[Form embedded in layout]
    H --> I[Payment completed]
    I --> J[Redirect to Success Page]

    B -->|Redirect| K[Click Buy Button]
    K --> L[Redirect to hosted page]
    L --> M[Payment completed]
    M --> N[Redirect back to website]
```

## Step-by-Step: Embedding the Overlay Checkout

The overlay checkout is the flagship feature of the Dodo Payments SDK. It is designed to be "drop-in" ready with minimal configuration. Here is how you set it up.

### 1. Install the SDK

If you are using a modern frontend framework, you can install the SDK via your package manager. This gives you full TypeScript support and better integration with your build pipeline.

```bash
npm install dodopayments-checkout
```

### 2. Initialize the SDK

You should initialize the SDK once when your application loads. This sets up the necessary listeners and prepares the overlay to be launched.

```javascript
import { DodoPayments } from "dodopayments-checkout";

DodoPayments.Initialize({
  mode: "test", // Use 'live' for production
  displayType: "overlay",
  onEvent: (event) => {
    console.log("Checkout event:", event);
  },
});
```

### 3. Call the Open Method

To trigger the checkout, you simply call the `open` method when a user clicks your buy button. You will need a `checkoutUrl`, which you can generate via the Dodo Payments API.

```javascript
const handleBuyClick = () => {
  DodoPayments.Checkout.open({
    checkoutUrl: "https://checkout.dodopayments.com/session/cks_your_id",
  });
};
```

## Step-by-Step: Embedding the Inline Checkout

Inline checkout requires a bit more layout planning since you need to provide a container for the form to live in.

### 1. Add a Container Element

In your HTML or component template, add a `div` with a unique ID. This is where the checkout widget will appear.

```html
<div id="dodo-checkout-container"></div>
```

### 2. Initialize for Inline Display

When initializing, make sure to set the `displayType` to `inline`. You should also listen for the `checkout.breakdown` event if you want to show real-time tax and total updates in your own UI.

```javascript
DodoPayments.Initialize({
  mode: "test",
  displayType: "inline",
  onEvent: (event) => {
    if (event.event_type === "checkout.breakdown") {
      // Update your custom order summary here
    }
  },
});
```

### 3. Initialize the Form

Call the `open` method and pass the `elementId` of the container you created in step one.

```javascript
DodoPayments.Checkout.open({
  checkoutUrl: "https://checkout.dodopayments.com/session/cks_your_id",
  elementId: "dodo-checkout-container",
});
```

## Platform-Specific Embed Instructions

Not every website is built with React or Vue. Many businesses use website builders or traditional CMS platforms. Here is how to embed the checkout widget on the most common platforms.

### Plain HTML and JavaScript

If you are building a static site, you can use the CDN version of the SDK. This avoids the need for a build step like Webpack or Vite.

```html
<script src="https://cdn.jsdelivr.net/npm/dodopayments-checkout@latest/dist/index.js"></script>
<script>
  DodoPaymentsCheckout.DodoPayments.Initialize({
    mode: "test",
    displayType: "overlay",
  });

  function startCheckout() {
    DodoPaymentsCheckout.DodoPayments.Checkout.open({
      checkoutUrl: "YOUR_CHECKOUT_URL",
    });
  }
</script>

<button onclick="startCheckout()">Buy Now</button>
```

### WordPress

To embed a checkout widget in WordPress, you can use the "Custom HTML" block in the Gutenberg editor. Paste the CDN script into a block at the bottom of your page, and then create a button that calls the JavaScript function. If you want a more integrated feel, you can add the initialization script to your theme's `header.php` or use a "Header and Footer Scripts" plugin. This is a great way to [sell digital products online](https://dodopayments.com/blogs/how-to-sell-digital-products-online) without needing a heavy plugin like WooCommerce.

### Webflow

In Webflow, you can use the "Embed" component to add custom code. Place the initialization script in the "Before </body> tag" section of your page settings. Then, give your buy button an ID and add a small script to trigger the checkout when that button is clicked. Webflow's clean design combined with a Dodo overlay creates a very high-end [mobile-first checkout](https://dodopayments.com/blogs/mobile-first-checkout-ai-saas) experience.

### Framer

Framer allows you to create "Code Components." You can create a custom button component that imports the `dodopayments-checkout` package and handles the initialization and opening logic. This gives you full control over the button's styling while leveraging the power of the SDK.

## Advanced Tips for Better Conversions

Simply embedding the widget is the first step. To truly optimize your sales, you should consider these advanced techniques.

### Styling to Match Your Brand

The Dodo Payments checkout widget is highly customizable. You can change colors, fonts, and border styles to match your website's aesthetic. A checkout that looks identical to your site's UI builds trust and makes the transition feel seamless. You can configure these themes in your Dodo Payments dashboard, and they will automatically apply to your embedded widgets.

### Passing Customer Data

If your user is already logged in, don't make them type their email address again. You can pass customer information when creating the checkout session on your backend. This pre-fills the checkout fields, reducing the effort required to complete the purchase. For SaaS companies, this is essential for a smooth upgrade flow.

### Handling Post-Payment Redirects

Once a payment is successful, you need to decide where the user goes next. For overlay checkouts, you can listen for the `checkout.success` event and show a "Thank You" message right on the page. For inline checkouts, you typically redirect the user to a dedicated success page. Make sure your success page provides clear instructions on how to access the product or service they just bought.

### Using Webhooks for Automation

While the frontend handles the UI, your backend needs to know when a payment is actually confirmed. Use [webhooks](https://docs.dodopayments.com/developer-resources/webhooks) to listen for `payment.succeeded` events. This allows you to automate license key delivery, account activation, or shipping notifications without manual intervention.

## Why Use a Merchant of Record?

When you embed a checkout widget, you aren't just putting a form on a page. You are opening your business up to global tax compliance, fraud prevention, and payment regulations. Using a [merchant of record for SaaS](https://dodopayments.com/blogs/merchant-of-record-for-saas) like Dodo Payments means you don't have to worry about these complexities.

Dodo Payments handles the sales tax (VAT, GST, etc.) for every country automatically. We also manage the legal liability of the transaction, which is why we are the [best platform to sell digital products](https://dodopayments.com/blogs/best-platform-sell-digital-products) for international founders. By embedding our widget, you get a world-class checkout and a global compliance team in one package.

## Internal and External Resources

To get the most out of your integration, check out these resources:

- [Overlay Checkout Documentation](https://docs.dodopayments.com/developer-resources/overlay-checkout)
- [Inline Checkout Documentation](https://docs.dodopayments.com/developer-resources/inline-checkout)
- [Dodo Payments SDKs](https://docs.dodopayments.com/developer-resources/dodo-payments-sdks)
- [Full Integration Guide](https://docs.dodopayments.com/developer-resources/integration-guide)
- [Embedded Payments for SaaS](https://dodopayments.com/blogs/embedded-payments-saas)

## FAQ

### Can I embed the checkout widget on a site with no backend?

Yes. You can use the CDN version of the SDK and payment links to accept payments on static sites. However, for secure transaction handling and automated fulfillment, we recommend using a simple backend to generate checkout sessions via our API.

### Does the embedded checkout work on mobile devices?

Absolutely. Both the overlay and inline checkout widgets are fully responsive and optimized for mobile browsers. They support Apple Pay and Google Pay, which allows for one-touch payments on mobile devices.

### How do I handle taxes with an embedded widget?

Dodo Payments handles all tax calculations and remittances for you. When the user enters their location in the checkout widget, the correct tax amount is calculated in real-time and added to the total. You don't need to write any tax logic yourself.

### Can I customize the fields in the checkout form?

Yes. You can choose which fields are required, such as billing address or phone number, through your Dodo Payments dashboard. You can also add custom fields if you need to collect specific information from your customers during checkout.

### Is the embedded checkout widget secure?

Yes. The checkout form is served via a secure iframe from Dodo Payments' servers. This means sensitive payment information like credit card numbers never touches your server, which simplifies your PCI compliance requirements.

## Conclusion

Embedding a checkout widget is the most effective way to keep your customers engaged and increase your conversion rates. By choosing between overlay and inline methods, you can tailor the experience to your specific business needs. With the Dodo Payments SDK, you can go from a static landing page to a fully functional global store in a matter of minutes.

Ready to start selling? Check out our [pricing](https://dodopayments.com/pricing) and sign up for a free account at [dodopayments.com](https://dodopayments.com) today. Whether you are selling a single ebook or a complex SaaS subscription, our embedded checkout tools are built to help you scale without the technical headaches.