Advanced Cart Customisation

More Sales from every Cart

Use the advanced Conversion Optimization features like upsell campaigns, subscription upgrades, trust building additions to cart to convert more and lift AOV.

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Why your theme's default cart has low conversions

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Shopify's default theme carts updates only on page reloads

It's not interactive the way modern websites and apps are. Customers expect a real time interactive cart with personalized suggestions and messaging. Not just a dull list of items. They expect to know which payment methods are supported. How much merchandise to add so they qualify for free shipping. Allow them to upgrade a one time purchase to a subscription. All this without reloading the page every time to reflect the results.

More than anything the cart should reflect your brand. It's the most important touch point sitting between your product page and the checkout.

  • Increase AOV
  • Reduce Cart Abandonments
  • Upsell related products
  • Convert more subscription upgrades

Slide-out Cart Drawer

Replace Shopify's default cart page with a fast, slide-out drawer that keeps shoppers on the page. Customers can review items, apply discounts, and checkout without ever leaving the product page — reducing drop-off at the most critical step.

Opens instantly without a page reload
Build using Shopify Liquid and Native Web Components
Optimized for speed — no layout shift or flicker on open
Works with any Shopify theme, no code changes needed
Fully replaces the default theme's cart and cart page for optimal conversions
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Branding & Theming

Make the cart feel like a natural extension of your store, not a generic checkout box. Control every visual detail to match your brand identity.

  • Set custom colors for the cart background, buttons, text, and borders
  • Choose fonts that match your storefront
  • Use custom CSS to customize button labels, icon styles, and section spacing
  • Choose from a variety of themes as your starting point.
  • Changes reflect instantly in the live preview — no guessing

Features

Everything you need to boost sales

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Branding & Theming

Control every visual detail to match your brand identity.

Make the cart feel like a natural extension of your store, not a generic checkout box.

  • Set custom colors for the cart background, buttons, text, and borders
  • Choose fonts that match your storefront
  • Use custom CSS to customize button labels, icon styles, and section spacing
  • Choose from a variety of themes as your starting point.
  • Changes reflect instantly in the live preview — no guessing

Book a demo
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Conditional Rendering Logic via Campaigns

Show the right cart elements to the right customers at the right time.

Use campaigns for conditional rendering of cart elements based on what's in the cart, who's shopping, which Shopify market they are shopping from etc

  • Show or hide line item messages based on cart total, item count, or specific products in cart
  • Target by customer tags, logged-in vs. guest status
  • Display different messaging for first-time vs. returning customers
  • Show cart timers and messaging for a specific market
  • Different free gift and shipping thresholds based on countries

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Shipping & Free Gift Thresholds

Show the progress in real time as items are added or removed.

Show customers exactly how close they are to unlocking free shipping or a free gift with a visual progress bar.

  • Set one or multiple cart value milestones
  • Reward customers with free shipping, a free gift, or an order discount at each tier
  • Auto-add the gift to cart when the threshold is hit — and auto-remove it if the cart drops below
  • Let customers choose their gift from a curated selection
  • No $0 inventory products needed

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Discount Code Field & Stacking

Let customers apply discount codes directly inside the cart drawer 

Applying discounts in the cart boosts order value by encouraging continued shopping, unlike at checkout where customers simply finalize their purchase.

CornerCart works with Shopify's built-in discount stacking, allowing multiple codes to work together seamlessly.

  • Discount input field built into the cart, before checkout
  • Real-time validation shows success or error instantly
  • Supports automatic discounts alongside manual codes
  • Compatible with Shopify's native discount combination rules
  • Works with percentage, fixed amount, and free shipping codes

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Cart Notes

Let customers leave additional order instructions right in the cart

Cart notes appear as the standard Shopify order note and are visible in your admin and any connected fulfillment app.

  • Optional text field shown inside the cart drawer
  • Customize the label and placeholder text
  • Toggle on or off without touching code
  • Note is attached to the order — no special integration needed

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Dynamic Express Checkout Buttons

Fewer steps means fewer drop-offs.

Let customers skip the cart review and jump straight to payment with one-tap checkout buttons inside the cart drawer.

  • Supports Shop Pay, Apple Pay, Google Pay, and PayPal
  • Buttons appear automatically based on what the customer's device and browser support
  • Positioned above or below the main checkout button
  • Fully compatible with Shopify's accelerated checkout APIs

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Trust Badges

Reduce last-second hesitation before checkout

Add payment icons, security badges, and custom trust signals inside the cart.

  • Choose from a library of payment method icons (Visa, Mastercard, Amex, PayPal, Shop Pay, and more)
  • Add SSL / secure checkout badges
  • Position badges anywhere in the cart layout

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One-Click Subscription Upgrade

Prompt subscription upsell from the cart

Let customers switch a one-time purchase to a subscription without leaving the cart. A simple toggle or prompt inside the cart drives recurring revenue with zero friction.

  • Works with Recharge, Skio, Stay AI, Loop, and other major subscription apps
  • Show the subscription savings prominently to drive conversion
  • Customers see the price difference instantly when toggling
  • The subscription interval and terms are clearly displayed before checkout

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Related Product Upsells in Cart

Show product recommendations inside the cart

The cart is the highest-intent moment in the shopping journey. Show relevant product recommendations inside the drawer to increase AOV without interrupting the path to checkout.

  • Recommend products based on what's in the cart
  • One-click add to cart directly from the upsell block, no page navigation
  • Works with Shopify Search & Discovery app for manual control of recommended products

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Sticky Cart Button & Floating Add to Cart Bar

Keep cart always visible as shoppers scroll

A persistent cart icon or floating bar ensures customers never lose track of what's in their cart and can open it at any point.

  • Sticky cart icon shows live item count in the corner
  • Floating add-to-cart bar appears on product pages as the customer scrolls past the main button
  • Customize position, color, and button text
  • Fully responsive — behaves differently on mobile vs. desktop

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For all the Devs out there

Developer friendly by design

CornerCart is built by developers who love to tweak things. That same spirit of customization runs through everything we create in CornerCart.

Developer Friendly by design

CornerCart is built by developers who love to tweak things. That same spirit of customization runs through everything we create in CornerCart.

Need something custom? Book a call with us

When the visual editor isn't enough, drop in your own HTML and CSS to build exactly what you need. CornerCart renders custom blocks inside the cart drawer just like any other component.

  • Add custom HTML blocks anywhere in the cart layout
  • Inject custom CSS that scopes cleanly to the cart without affecting the rest of your theme
  • Reference cart data like line items, totals, and customer info inside your custom code

For teams that want full programmatic control, CornerCart exposes a JavaScript SDK to interact with the cart from your storefront code.

  • Open, close, or toggle the cart drawer programmatically
  • Add, remove, or update line items from any page event
  • Listen to cart events (item added, cart opened, checkout initiated) with a simple event API
  • Read current cart state at any point without an extra API call (TODO check @jovis)
  • Works alongside Shopify's native Cart API
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Programmable with JavaScript SDK image

Frequently asked questions

Everything you need to know about CornerCart.

Will CornerCart work with my Shopify theme?

Yes. CornerCart works with any published Shopify theme, including free themes, premium themes, and custom-built themes. It injects the cart drawer without modifying your theme files, so there is no risk of breaking your storefront. Installation is done through Shopify's app embed system.

Do I need a developer to set up CornerCart?

No. The cart is configured through a visual editor in the CornerCart dashboard. You can customize colors, fonts, layout, and add or remove blocks without writing any code. Developer access is only needed if you want to use custom HTML/CSS blocks or the JavaScript SDK for advanced use cases.

Will CornerCart slow down my store?

No. CornerCart is built for speed. The cart drawer is built with native Web Components and Shopify Liquid, which means it loads as part of your theme without adding too many heavy JavaScript bundles. It is designed to open instantly without layout shift or page flicker.

Does CornerCart work with Shopify Markets?

Yes. CornerCart supports Shopify Markets. You can configure different campaigns that show in cart per market — including different free shipping thresholds, free gift rules, and cart messaging — based on which market a customer is shopping from.

Does CornerCart replace my existing cart page?

Yes. When installed, CornerCart replaces the default Shopify cart drawer and cart page with its own slide-out drawer. This ensures a consistent, optimized experience. The default cart URL (/cart) is also handled by CornerCart so customers are never sent to a bare cart page.

Does CornerCart support discount code stacking? 

Yes. The cart includes a built-in discount code field that supports Shopify's native discount combination rules. Customers can apply manual codes on top of automatic discounts, and the cart reflects the updated total in real time.

Will CornerCart conflict with other apps installed on my store? 

CornerCart is designed to coexist with the most common Shopify apps including upsell, loyalty, review, and subscription apps. If a conflict arises with a specific app, reach out to support — most conflicts are resolved through a configuration adjustment rather than a code change.

Does CornerCart work on headless Shopify stores?

CornerCart is built for standard Shopify storefronts using Liquid themes. Headless stores using custom storefronts (Hydrogen, Next.js, etc.) are not currently supported out of the box, but the JavaScript SDK can be used as a foundation for custom integrations.

Can I translate the cart into multiple languages? 

Yes. All text labels inside the cart, button text, section headings, threshold messages, placeholder text, are editable in the dashboard. For stores using Shopify's built-in translation features or third-party translation apps like Langify or Weglot, cart text can be translated as part of your normal translation workflow.

What happens to the cart if I uninstall CornerCart? 

Uninstalling CornerCart removes the app embed from your theme and restores the default Shopify cart behavior. No permanent changes are made to your theme files, so there is nothing to manually clean up.