Upsell at the highest-intent moment.
One-tap product recommendations at checkout — by tag, collection or value. +6% AOV.
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1 2 Exactly what your shopper sees — at the moment they're ready to buy.
The Checkout Ninja tag only marks the block in this preview — it never appears in your live checkout.
"Fantastic app, highly recommended. We've been using it for years — a long list of checkout customisations suited to our store. A must-have for all your Shopify checkout needs."
How to add Upsell to Shopify checkout
Install Checkout Ninja from the Shopify App Store, open the checkout editor, and drag the Upsell block into the section where you want it. Then configure it in three steps. No theme code, no checkout.liquid, and it survives every Shopify update because it runs on Checkout Extensibility.
Pick your offer logic
By tag (matching SKU type), by collection (all subscription add-ons), or by order value (upsell triggers above $50).
Choose the product
One product per offer block. Multiple offer blocks can stack — but limit to two for sanity.
Test the add-to-cart
The Add button adds without leaving checkout. Cart total updates inline.
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How is this different from post-purchase upsells?
Post-purchase asks after they pay — lower friction but lower attach rate. Checkout upsell catches them at peak intent.
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Can I show different upsells to different customers?
Yes. Use Checkout Rules or Conditional Visibility — different upsell by segment, country, cart contents, etc.
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Does the upsell affect shipping?
Shopify recalculates shipping in real time when the upsell adds to the cart. No mid-cart surprises.
Build the rest of your checkout.
Featured Upsell
A single hero recommendation — big image, full details, one prominent Add button.
See the block Conversion BoostersQuick Add Upsell
Dense product rows — image, title, price, Add. Paging only when it's needed.
See the block Conversion BoostersPromo Banner Upsell
Your banner image up top, curated recommendations directly beneath it.
See the blockInstalled by these templates
All templates →Add the Upsell block today.
Every block + every feature, on a 3-day trial. No card. Live before your next order.