All cart customization apps with features for custom css

Add a "buy now" button, sticky add to cart, or whatever else helps customers complete their purchase.

73 apps with

Custom CSS

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5.0 out of 5 stars 208 total reviews Free
Boost Sales with Slide Cart, Sticky Cart, Free Shipping Bar
Built for Shopify
4.8 out of 5 stars 987 total reviews Free plan available
Add a Slide Cart with a Free Shipping Bar & Upsell Cart Widget
Built for Shopify
4.9 out of 5 stars 794 total reviews Free plan available
Add Sticky Add to Cart, Slide Cart Drawer to boost AOV
Built for Shopify
5.0 out of 5 stars 633 total reviews Free plan available
Boost AOV with cart upsell offers & free shipping bar
Built for Shopify
5.0 out of 5 stars 145 total reviews Free plan available
Customize checkout behavior with conditional powerful rules
Built for Shopify
4.9 out of 5 stars 405 total reviews Free plan available
Add sticky cart and quick buy icon to get more sales
Built for Shopify
5.0 out of 5 stars 312 total reviews Free to install
Formerly Sprout. GoodAPI plants trees & removes plastic waste
Built for Shopify
5.0 out of 5 stars 649 total reviews Free to install
Add terms and conditions checkbox for age verification rules
Built for Shopify
5.0 out of 5 stars 28 total reviews Free
Grow sales: Add to Cart Bar, Cart Upsell & Free Shipping Bar
Built for Shopify
4.8 out of 5 stars 780 total reviews Free trial available
AI recommendations: cart, checkout, and post-purchase upsells
4.9 out of 5 stars 211 total reviews Free plan available
Cart reserve message with countdown timer to boost BFCM sales
4.8 out of 5 stars 1018 total reviews Free plan available
Display Sticky Add to Cart, Quick Buy, Sticky Cart & more
4.8 out of 5 stars 28 total reviews Free
Boost AOV with Slide Cart Drawer, Sticky Cart & Trust Badges
5.0 out of 5 stars 62 total reviews Free plan available
Add a Slide Cart with a Free Shipping Bar & Upsell Cart Widget
4.8 out of 5 stars 627 total reviews Free
Increase AOV with one click Upsell & Cross Sells
4.8 out of 5 stars 457 total reviews Free plan available
Create product bundles, volume discount, and upsell offers
4.6 out of 5 stars 213 total reviews Free plan available
Avoid lost sales abandonment by showing a sticky add to cart.
4.9 out of 5 stars 31 total reviews Free to install
Validate shipping addresses to prevent failed deliveries
Built for Shopify
4.9 out of 5 stars 354 total reviews Free to install
BOOST SALES w a Slide Kart & Upsell Side Cart UpCart
4.8 out of 5 stars 586 total reviews Free plan available
Add slide cart drawer with in cart upsell & free shipping bar
4.8 out of 5 stars 32 total reviews Free trial available
Boost AOV with Cart Drawer, Upsell, Reward Bar & Shipping Bar
Built for Shopify
5.0 out of 5 stars 44 total reviews Free plan available
Add a Slide Cart with a Free Shipping Bar & Upsell Cart Widget
4.9 out of 5 stars 1770 total reviews Free trial available
Increase Orders w/ Sticky Add to Cart Bar, Buy Button & More
4.7 out of 5 stars 159 total reviews Free plan available
Cart Upsell—Boost Sales with Slide Cart Drawer Offers
73 apps with

Custom CSS

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