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
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