Simplify Your Payment Experience with Mainstack Checkout.

Simplify Your Payment Experience with Mainstack Checkout.


Mainstack Checkout is a 3-in-1 smart checkout system designed to fit right into your existing website or sales flow. Whether you prefer to share a link, embed a widget, or trigger a pop-up, we have you covered.

Our checkout system helps your customers pay you quickly, with no friction and no extra steps. With just a single line of code or a few clicks, you can start accepting payments in a way that feels natural to your customers and seamless for you.

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The Mainstack Checkout System

It comprises 3 parts, each part of the Mainstack Checkout works on its own, with no dependencies, and no complicated setup. Whether you use one or all three, you’ll still offer your customers a smooth and professional checkout experience.

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This is a quick way to send your customers directly to a ready-to-use product page.

Key features include:

  1. No coding required.
  2. The generated checkout link is perfect for sharing in emails, social media, newsletters, WhatsApp, or any platform where you connect with customers.
  3. The link takes your customers straight to the product page. It’s ideal for digital products, one-off services, or donations.

Use case: Selling an ebook? Just drop the product link into your Instagram bio or send it via DM and start collecting payments instantly.

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2. Speed Checkout (Embedded Widget)


With this checkout system, you can let your checkout page live on your website by embedding it, like this :


Key features of the speed checkout include:

  • A single line of code to drop a sleek, responsive checkout widget onto any page.

  • Keeps your customers on your website, no redirection.

  • Customers can complete payments without leaving your site, ensuring a frictionless experience that keeps them engaged.

  • The link takes customers straight to a secure checkout page, eliminating unnecessary steps and boosting conversions.

  • It’s a clean, web and mobile-responsive design that blends right in with your brand.

  • Best used on sales pages, landing pages, or Business sites.

Use case: Running a Business sales website? Add the widget directly below the program description and let customers pay without leaving the page.

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3. Pop-up Checkout (Embedded Widget)


Do you prefer a more dynamic checkout approach? Trigger a checkout pop-up instead.

Key features include:

  • Embed a checkout experience directly into your website with a single line of code.

  • The pop-up appears when a customer takes an action (e.g., clicks a “Buy Now” button).

  • It’s fast, intuitive, and doesn’t interrupt your site’s flow.

Use case: Perfect for product galleries, promotional campaigns, or time-limited offers that need quick conversions.

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Why Mainstack Checkout Works

  1. It has a lightning-fast setup process that is live in minutes.

  2. Flexible integration that works wherever your customers are.

  3. You can boost conversions because fewer steps = more completed purchases.

  4. It has a seamless UX that is clean, a web and mobile-friendly design that your customers will love.

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Getting Started

Ready to simplify your checkout process? Here is how:

  1. Next, go back to your dashboard and click on the product.
  2. Then click Checkout and select your preferred checkout type: Link, Speed, or Pop-up.
  3. Copy the code or link generated in your Mainstack dashboard.
  4. Embed it in your site or share it directly, and
  5. Start collecting payments.

Need help setting things up, or unsure which checkout type fits best? Our Support Team is ready to assist.