Add cart surcharges, handling fees, and extra charges to Shopify checkout. Use for processing fees, expedited shipping, rush orders, shipping insurance, gift wrap service, tip collection, donation box, environmental fees, fragile item handling, oversized product charges, and custom service fees. Customers choose to add fees with an opt-in toggle. Keep 100% of revenue—zero commission or revenue sharing. Compatible with slide cart, cart drawer, cart page, and all Online Store 2.0 themes.

• Add fixed, percentage, or combined fee types to any cart
• Create product-specific surcharge rules with flexible conditions
• Multi-currency support through Shopify Markets integration
• Clean install/uninstall using theme app extensions
• Fully customizable to match your brand

Normalize Cart Drawer replaces your theme's native cart with a customizable slide-out drawer you design in a visual editor — no theme code required. Drag and drop sections like a shipping progress bar, recommended products, cart notes, promo banners, and custom HTML. Control colors, spacing, and typography, preview changes live, and save multiple templates. Publish the version you want and the drawer renders on your storefront through a Shopify theme app extension.

• Create and manage multiple cart templates
• Publish draft or live templates by store
• Drag-and-drop cart component ordering
• Configure colors, spacing, and typography
• Add a shipping progress bar with custom messaging

Everfield adds custom option fields to your product pages and cart. Build with 13 field types: text, dropdowns, radio buttons, checkboxes, color swatches, date picker, file upload, product picker and more. Per-option add-ons carry upgrades through to the cart total. Show or hide fields with conditional logic based on answers or the selected variant. Style everything with a live preview, target by product, collection, tag, country or device, and see every answer on its order. No code required.

• Text, dropdown, checkbox, radio, swatch, date, file upload and product fields
• Per-option add-ons that update the cart total as shoppers make their choices
• Conditional logic shows or hides fields by answers or the selected variant
• Cart page fields too — capture order notes and gift messages above checkout
• Answers saved on the order as line item properties and cart attributes