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

Clear
We are having trouble loading your results. Try again
5.0 out of 5 stars 220 total reviews Free
Boost Sales with Slide Cart, Sticky Cart, Free Shipping Bar
Built for Shopify
4.8 out of 5 stars 988 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 796 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 635 total reviews Free plan available
Boost AOV with cart upsell offers & free shipping bar
Built for Shopify
5.0 out of 5 stars 146 total reviews Free plan available
Customize checkout behavior with conditional powerful rules
Built for Shopify
5.0 out of 5 stars 314 total reviews Free to install
Formerly Sprout. GoodAPI plants trees & removes plastic waste
Built for Shopify
4.9 out of 5 stars 407 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 652 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 781 total reviews Free trial available
AI recommendations: cart, checkout, and post-purchase upsells
4.8 out of 5 stars 1021 total reviews Free plan available
Display Sticky Add to Cart, Quick Buy, Sticky Cart & more
4.8 out of 5 stars 30 total reviews Free
Boost AOV with Slide Cart Drawer, Sticky Cart & Trust Badges
5.0 out of 5 stars 64 total reviews Free plan available
Add a Slide Cart with a Free Shipping Bar & Upsell Cart Widget
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 628 total reviews Free
Increase AOV with one click Upsell & Cross Sells
4.8 out of 5 stars 458 total reviews Free plan available
Create product bundles, volume discount, and upsell offers
4.8 out of 5 stars 586 total reviews Free plan available
Add slide cart drawer with in cart upsell & free shipping bar
4.6 out of 5 stars 213 total reviews Free plan available
Avoid lost sales abandonment by showing a sticky add to cart.
4.8 out of 5 stars 33 total reviews Free trial available
Boost AOV with Cart Drawer, Upsell, Reward Bar & Shipping Bar
Built for Shopify
4.9 out of 5 stars 1770 total reviews Free trial available
Increase Orders w/ Sticky Add to Cart Bar, Buy Button & More
4.9 out of 5 stars 355 total reviews Free to install
BOOST SALES w a Slide Kart & Upsell Side Cart UpCart
4.8 out of 5 stars 178 total reviews Free plan available
Increase your revenue by having a smart Sticky Add To Cart bar
5.0 out of 5 stars 44 total reviews Free plan available
Add a Slide Cart with a Free Shipping Bar & Upsell Cart Widget
4.7 out of 5 stars 159 total reviews Free plan available
Cart Upsell—Boost Sales with Slide Cart Drawer Offers
73 apps with

Custom CSS

Clear
Select up to 4 apps to compare

Want to add an app?

Try Shopify free for 3 days