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.
80 apps with
Custom CSS
Clear
4.8
out of 5 stars
695 total reviews
•
Free plan available
Add a Slide Cart with a Free Shipping Bar & Upsell Cart Widget
Built for Shopify
5.0
out of 5 stars
347 total reviews
•
Free to install
Boost Sales with Free Shipping Bar and Free Gift in slide cart
Built for Shopify
4.9
out of 5 stars
452 total reviews
•
Free plan available
Boost AOV with slide cart drawer upsell and sticky add to cart
Built for Shopify
5.0
out of 5 stars
506 total reviews
•
Free plan available
Boost AOV with cart upsell offers & free shipping bar
Built for Shopify
5.0
out of 5 stars
147 total reviews
•
Free plan available
Customize checkout behavior with conditional powerful rules
Built for Shopify
5.0
out of 5 stars
121 total reviews
•
Free plan available
Boost AOV with Slide Cart, Free Shipping Bar and Free Gifts
Built for Shopify
5.0
out of 5 stars
422 total reviews
•
Free plan available
Add terms and conditions checkbox to tariff & age verification
Built for Shopify
4.9
out of 5 stars
36 total reviews
•
Free
Grow via Cart Drawer, Sticky Add to Cart Upsell & Shipping Bar
Built for Shopify
5.0
out of 5 stars
222 total reviews
•
Free to install
This Earth Month: Plant trees, remove plastic, and make impact
Built for Shopify
4.9
out of 5 stars
241 total reviews
•
Free plan available
Auto add to cart Free Gift with purchase & cart upsell
Built for Shopify
4.8
out of 5 stars
746 total reviews
•
Free plan available
AI recommendations: cart, checkout, and post-purchase upsells
4.9
out of 5 stars
153 total reviews
•
Free plan available
Add sticky cart and quick buy icon to get more sales
Built for Shopify
4.9
out of 5 stars
175 total reviews
•
Free plan available
Display Sticky Add to Cart, Quick Buy, Sticky Cart & more
Built for Shopify
4.8
out of 5 stars
402 total reviews
•
Free plan available
Add slide cart drawer with in cart upsell & free shipping bar
Built for Shopify
4.8
out of 5 stars
531 total reviews
•
Free trial available
Increase Orders w/ Sticky Add to Cart Bar, Buy Button & More
5.0
out of 5 stars
34 total reviews
•
Free trial available
Boost AOV with slide cart drawer, upsell & free shipping bar
Built for Shopify
4.9
out of 5 stars
106 total reviews
•
Free plan available
Increase conversion rate with a cart reserve countdown timer
5.0
out of 5 stars
15 total reviews
•
Free
Offer cart upsells via progress bar free gifts & free shipping
5.0
out of 5 stars
217 total reviews
•
Free trial available
Add a Terms and Conditions checkbox without any hassle!
4.9
out of 5 stars
62 total reviews
•
Free plan available
Increase your revenue by having a smart Sticky Add To Cart bar
4.8
out of 5 stars
335 total reviews
•
Free
Increase AOV with one click Upsell & Cross Sells
5.0
out of 5 stars
18 total reviews
•
Free trial available
2025's ultimate cart for increased AOV! Made in Sweden.
Built for Shopify
4.9
out of 5 stars
32 total reviews
•
Free plan available
Avoid lost sales abandonment by showing a sticky add to cart.
4.7
out of 5 stars
191 total reviews
•
Free to install
BOOST SALES w a Slide Kart & Upsell Side Cart UpCart
80 apps with