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.

464 apps with

Custom CSS

Clear
We are having trouble loading your results. Try again
Essential Upsell & Cross Sell
5.0 out of 5 stars 2170 total reviews • Free plan available
Lift AOV with Frequently Bought Together Upsell and Cross-sell
Kaching CartDrawer Cart Upsell
5.0 out of 5 stars 990 total reviews • Free plan available
Boost your AOV: slide cart, upsell cart & free shipping bar
ETP Sort Hide Payment Methods
5.0 out of 5 stars 280 total reviews • Free
Hide, sort, reorder, rename payment methods with payment rules
EG Auto Add to Cart Free Gift
5.0 out of 5 stars 1045 total reviews • Free trial available
Auto-add free gifts and BOGO offers with smart targeting rules
Essent Cart Drawer Cart Upsell
5.0 out of 5 stars 648 total reviews • Free
Lift AOV via Slide Cart Upsell, Sticky Add to Cart, Reward Bar
Kaching Post Purchase Upsell
5.0 out of 5 stars 258 total reviews • Free plan available
Boost AOV via 1-click Checkout upsells & Thank You page offers
Essent FreeShipping Upsell App
5.0 out of 5 stars 852 total reviews • Free plan available
Lift AOV via Free Shipping Bar Goal Cart Upsell and Cross Sell
EA • Sticky Add to Cart Drawer
4.9 out of 5 stars 182 total reviews • Free
Grow via Slide Cart Drawer, Cart Upsell Sticky Add to Cart Bar
AOV.ai Cart Drawer Cart Upsell
5.0 out of 5 stars 788 total reviews • Free to install
Slide cart drawer with cart upsell, sticky cart, free shipping
TnC: Terms and Conditions Box
4.9 out of 5 stars 495 total reviews • Free plan available
Add safety with age verification terms and conditions checkbox
RA Term and Condition Checkbox
4.9 out of 5 stars 177 total reviews • Free plan available
Terms and Conditions Checkbox, Checkout Rules Age Verification
Ego Cart Drawer Cart Upsell
4.9 out of 5 stars 543 total reviews • Free plan available
Boost Sales w Slide cart drawer, Rewards bar, Free Gifts, etc
Upsell.com ‑ ReConvert Upsell
4.8 out of 5 stars 2834 total reviews • Free plan available
Create Cart Upsell & Cross Sell + Post Purchase Upsell Funnels
Kip: Sort Hide Payment Methods
4.9 out of 5 stars 122 total reviews • Free plan available
Take full control of payment methods with Kip customizations.
XB: AI Cart Upsell Cart Drawer
5.0 out of 5 stars 203 total reviews • Free to install
Slide Cart with Free Shipping Bar, Free Gift & Product Add-ons
Payflow: COD & Checkout Rules
4.9 out of 5 stars 108 total reviews • Free plan available
COD fees, payment and delivery rules with checkout validations
Scala Payment Method Discount
5.0 out of 5 stars 57 total reviews • Free
Offer payment method & prepaid discounts during checkout
Square: Sticky Add to Cart Bar
5.0 out of 5 stars 138 total reviews • Free
Keep the Sticky Add to Cart Bar visible on scroll to boost AOV
Amp Slide Cart Upsell Drawer
5.0 out of 5 stars 676 total reviews • Free plan available
Add slide cart to boost AOV with upsells & free shipping bar
Fokkio Free Gift With Purchase
4.8 out of 5 stars 64 total reviews • Free plan available
Boost sales with auto-added gifts & products - smart targeting
Wi Buy Now: Sticky Add to Cart
5.0 out of 5 stars 37 total reviews • Free
Boost CTR by sticky add to cart button, buy now button
Shipzy ‑ Shipping Rules
5.0 out of 5 stars 136 total reviews • Free plan available
Control your shipping rates by multiple conditions at checkout
iCart Cart Drawer Cart Upsell
4.7 out of 5 stars 436 total reviews • Free plan available
Boost AOV with slide cart drawer, cart upsell & progress bar
Sale max ‑ Slide Cart Drawer
4.9 out of 5 stars 138 total reviews • Free
Cart Upsell—Boost Sales with Slide Cart Drawer Offers
1 3 4 … 20
1 3 4 … 20
464 apps with

Custom CSS

Clear
Built for Shopify

Want to add an app?

Try Shopify free for 3 days