Checkout Extensions

Unlock more revenue at checkout

Customize your Shopify Plus checkout with flexible content blocks and timely upsell offers that increase AOV without disrupting the buying experience.

4.7

overall rating on Shopify

$3.8B+ in new revenue for merchants

Shopify enhanced checkout example

A smarter checkout experience, built to convert

Flexible personalization that fits how customers actually buy

Checkout Extensions gives you control over one of the most valuable moments in the customer journey. Deliver relevant offers, content, and merchandising directly in checkout to increase conversion and average order value, without compromising speed or trust.

  • Increase AOV at the moment of purchase

    Present complementary products and offers when customer intent is highest

  • Create checkout experiences that feel native

    Customize content and placements to match how your customers shop

  • Power personalization with data

    Use real-time and historical data to tailor offers to each customer, with clear rules, transparent logic, and full control over what shoppers see.

  • Checkout Extensions cross-sells UI

    Streamlined cross-sells, right in checkout

    Create personalized checkout offers using Rebuy’s rules engine and AI. Trigger cross-sells based on customer behavior, product data, cart value, and more to deliver offers that make sense in the moment.

  • Shopify checkout customization with Rebuy

    Flexible checkout customization

    Customize the checkout, thank-you page, and order status page to match your brand and your customers’ needs. Add in-checkout offers, content blocks, accelerated payments, discounts, subscriptions, and flexible placements, all within Shopify’s native framework.

  • Easy drag-n-drop setup for Checkout Extensions

    Seamless setup

    Launch quickly with a drag-and-drop editor designed for speed and control . Add intelligent product recommendations and place them exactly where they perform best, no heavy dev work required.

  • Sustainable profitability with Checkout Extensions

    Built for sustainable profitability

    Configure offers that are easy for customers to say yes to.

    Promote high-margin items, move excess inventory, test exclusive discounts, or highlight last-chance products, all within checkout.

The world's best brands trust Checkout Extensions

Guru Nanda Case Study

15%

Increase in AOV

"When we saw the numbers in the Rebuy dashboard, it was quite shocking to see the improvement."
Anish Nanda
Director of Ecommerce at Guru Nanda

MaryRuth Organics Case Study

27%

increase in AOV

"Rebuy is one of the biggest game changers for increased subscriptions and higher AOV."
Jay Hunter
Chief Revenue Officer at MaryRuth Organics

Cabau Lifestyle Case Study

27%

increase in AOV

"We’re not just increasing revenue. We’re guiding customers toward a holistic outcome that meets their specific needs. That builds trust and keeps them coming back."
Leonard Kalkman
Chief of Marketing & Technology at Cabau
Smart Cart features

Built for revenue and retention

Everything you need to turn your cart into your highest converting channel.

  • Tiered progress bar
    Increase Order Value

    Tiered Progress Bar

    Gamify the shopping experience with visual progress tracking that shows customers exactly how close they are to their next reward. Motivate shoppers to hit free shipping thresholds, unlock gifts, or reach the next discount tier without feeling pushy.

  • Gift with purchase
    Reward bigger carts

    Gift with Purchase

    Turn browsers into buyers with conditional gifts that unlock at specific cart values. Show shoppers what they'll get when they add just one more item, creating urgency that feels like a reward instead of a sales tactic.

  • smart-cart-buy-more-save-more
    Boost order size

    Buy More, Save More

    Automatically offer volume discounts that reward customers for adding more to their cart. Set tiered pricing that clearly shows how much they'll save, making it easy for shoppers to justify buying in bulk or adding that extra item.

  • Switch to subscription
    Grow recurring revenue

    Switch to Subscription

    Convert one-time purchases into recurring revenue by surfacing subscribe-and-save options right in the cart. Let customers see the savings and convenience of subscriptions at the moment they're ready to buy, without interrupting their checkout flow.

  • Recommendations
    Personalize your offers

    Recommendations

    Surface personalized product suggestions based on what's already in the cart, browsing behavior, and purchase history. Help customers discover products they'll actually want while increasing cart value naturally.

  • Express checkouts
    Reduce checkout friction

    Express Checkouts

    Let customers check out in seconds with one-tap payment options like Apple Pay, Google Pay, Shop Pay, and PayPal. Remove friction at the most critical moment and turn intent into revenue faster.

  • Discount code input
    Reduce abandoned carts

    Discount Code Input

    Give shoppers a place to enter promo codes right in the cart so they don't abandon to hunt for coupons. Validate codes in real-time and show savings immediately, keeping customers in their buying flow.

  • Double wide cart
    Improve cart visibility

    Double Column Layout

    Maximize screen real estate with a two-column cart layout that shows more products and recommendations without endless scrolling. Give desktop shoppers a cleaner, more efficient view of their cart that makes adding items feel effortless.

  • smart-cart-integrations-1
    Connect your tech stack

    Integrations

    Connect Smart Cart with your loyalty programs, membership platforms, SMS capture, shipping protection, review platforms, and more. Bring everything your customers need directly into the cart experience so they never have to leave to access benefits, protect their order, or stay connected.

How it works

how-it-works-checkout-extensions

  • 01 Build

    Design personalized offers and content using rules or AI

  • 02 Launch

    Publish directly to your Shopify Plus checkout

  • 03 Optimize

    Track performance and refine offers over time

Easy to install on Shopify Plus

See exactly how to set up Checkout Extensions and launch your first personalized checkout experience.

Explore other products

More about Checkout & Post-Purchase All products

Checkout Extensions FAQs

  • Shopify Checkout Extensions are native components that let brands customize the checkout experience on Shopify Plus. They allow you to add content blocks, personalized offers, and custom logic directly into checkout, without breaking Shopify’s performance or security standards.

  • Yes. Shopify Checkout Extensions are available exclusively to brands on Shopify Plus. This ensures all customizations are secure, fast, and fully supported within Shopify’s native checkout framework.

  • Rebuy Checkout Extensions focus on control, clarity, and native performance. You decide when and how offers appear using clear rules, data, or AI assistance, without relying on black-box automation or aggressive tactics. The result is higher AOV without compromising trust or shoppers’ checkout experience.

  • No. Rebuy Checkout Extensions are built on Shopify’s native framework and designed to load quickly and feel invisible to shoppers. Performance, reliability, and conversion are protected by default.

  • Yes. In addition to checkout, you can customize thank you pages and order status pages. This lets you extend personalization beyond purchase while keeping the experience seamless and on-brand.

  • You can personalize offers using cart contents and value, product data, shopper behavior, and real-time and historical data. All logic is transparent and configurable.

  • Nope. Most brands launch using Rebuy’s drag-and-drop editor with minimal technical support. For advanced use cases, your team can layer in more complex logic, but it’s never required to get value.

  • Absolutely. Optimization is built into the workflow, so you can track performance, iterate on placements, adjust rules, and refine offers based on real results.

  • Yes! Rebuy is built for high-volume Shopify Plus brands that need flexibility without risk. All checkout experiences follow Shopify’s native guidelines and are designed for scale, stability, and long-term growth.

  • Most brands can launch their first checkout experience in days. Setup is straightforward, and the Rebuy team is available to guide strategy and best practices.