Ecommerce Shopping Cart: Types and How To Choose (2026)

An ecommerce shopping cart is the holding space where a shopper collects their items before checkout. It’s often the last stop between browsing and buying, but it can be surprisingly difficult to convert a cart into a sale. In fact, the average cart abandonment rate across ecommerce sits at 70.22%, according to a Baymard Institute analysis.

For retailers, the online shopping cart captures much of what happens before a sale, making it a data-rich source for understanding your customers. Moreover, a well-oiled checkout process and intuitive ecommerce shopping cart can help you retain customers and close sales. Ahead, learn the main types of shopping carts and how to choose the right one for your online store.

What is an ecommerce shopping cart?

An ecommerce shopping cart is software that allows customers to compile and manage products before buying them. The cart will keep track of items, quantities, prices, discounts, taxes, and shipping costs, then calculate the order total and pass the purchase into checkout, where customer details are collected, and payment is processed.

A cart like luggage brand Monos, for example, lets shoppers change quantities, remove items, see their subtotal and shipping terms, add complementary products, and review payment options. 

The importance of the right ecommerce shopping cart

The ecommerce shopping cart that you choose for your site determines what you can offer regarding checkout speed, payment methods, shipping, mobile UX, recovery, and integrations, all at a point in the customer journey where loss is expensive. 

Baymard’s 2026 benchmark estimates that the average large ecommerce site could increase conversion by 35.26% through better checkout design alone. After underwear brand Manmade moved from BigCommerce to Shopify Plus, their checkout completion rate rose from 58% to 68%, with 35% of customers using Shop Pay. 

Likewise, German fashion brand ARMEDANGELS saw a different set of gains after replatforming from Shopware. Their checkout conversion doubled, mobile conversion increased 18%, and average load times across key journeys fell 23% in the first three months.

The right ecommerce shopping cart depends on where your own friction lies. That may be payments, mobile performance, international selling, shipping, customization, or the technical work required to keep everything running.

Types of ecommerce shopping carts

The main types of shopping carts can be grouped by how the software is hosted, licensed, and structured. Options include: 

Hosted software-as-a-service (SaaS) shopping carts

A hosted SaaS shopping cart bundles ecommerce software with web hosting into a single package. You pay a recurring subscription and access everything through a browser, while the provider handles updates, security, and the underlying infrastructure. Shopify, for example, includes ecommerce hosting and Shopify Checkout, which guides customers through cart, shipping information, payment details, and order placement.

A couple of other SaaS shopping cart platform examples include BigCommerce and Wix. Since much of the technical infrastructure is handled for you, you’ll experience shorter setup times and reduced ongoing maintenance, which can be especially beneficial for businesses without an in-house development team.

Self-hosted open-source shopping carts

Self-hosted open-source shopping carts make their source code publicly available to download, use, and customize on your own server environment, often without a software licensing fee.

Free, however, doesn’t mean cost-free to run. You still need to arrange your own hosting and may pay for premium extensions, themes, security, maintenance, and developer time, particularly when the store requires extensive customization.

Licensed shopping carts

Licensed shopping carts are proprietary ecommerce platforms that businesses pay to use via a recurring or one-time software license. You deploy the software on infrastructure you control, while your right to access, modify, or redistribute its code remains governed by the vendor’s license. 

Unlike SaaS options, these platforms allow you to deploy the software on your own infrastructure or private cloud, giving you full control over hosting without granting access to modify the underlying source code. Adobe Commerce On-premise and CS-Cart are examples. Costs can include the software license, as well as hosting, implementation, maintenance, and developer support.

Headless and API-first shopping carts

Headless shopping carts are defined by their architecture rather than their hosting model. They separate the front-end customer experience from the back-end cart and checkout engine.

This setup can be built on top of either SaaS or self-hosted platforms. For example, Shopify supports headless builds through its Storefront API and Hydrogen framework, giving developers greater design control over the front end while retaining Shopify’s managed cart and checkout functionality.

Other examples in this space include Commerce tools, Elastic Path, and Swell. While headless shopping carts allow for more design flexibility and performance optimizations, they require dedicated developer resources to build and maintain custom frontend integrations.

How to choose the right ecommerce shopping cart

The right cart is the one built for what your store needs to do. Maine Lobster Now was running live lobster deliveries on Magento. Getting their checkout to handle specific delivery dates for a highly perishable product required months of development and a serious budget every time something changed. 

After moving to Shopify, they cut that build cost by roughly 90%, lifted conversion by 69%, and cut fraud-related chargebacks by 93%. 

“Shopify truly has allowed us to spend more time with our customers and less time managing our store and other technical issues,” says Julian Klenda, founder and CEO.

Here’s what you need to keep in mind as you evaluate ecommerce shopping cart options:

Pricing

A shopping cart software solution can cost anywhere from $0 for an open-source core product to thousands of dollars per month for an enterprise platform. Some software is free to download but may incur charges in your developer time. Shopify’s full-store plans start at $39 per month. Always remember to factor in hosting, apps, payment fees, development, and maintenance when comparing total cost.

Integrations

Your cart has to connect cleanly with the rest of your tech stack, including payment gateways, inventory management systems (IMS), fulfillment model, customer relationship management (CRM) platform, marketing, and analytics. Check which integrations are native, which require an app, and where custom API work may be needed. Shopify has more than 16,000 apps in its App Store, giving you room to add capabilities as your business grows.

Accepted payment types

For many shoppers, payment options are often the deciding factor before checkout even loads. A 2025 PYMNTS Intelligence survey found that 70% of consumers call the availability of their preferred payment method “very or extremely influential” in choosing where to shop online. In that vein, Visa Acceptance Solutions’ 2026 research found that retailers now offer an average of four to five payment methods, as options such as digital wallets, real-time payments, and buy now, pay later (BNPL) proliferate. 

The Swedish jewelry brand Syster P consolidated separate storefronts for Sweden, Finland, Norway, and Germany into one Shopify Markets store, helping them to double international sales year over year. 

“Being able to easily add local payment methods is a big fix. … We just switch it on, and everything works,” says Hanna Holmberg, head of marketing.

Shopify store owners can also offer Shop Pay Installments—Shopify reports a 50% increase in average order value (AOV) for one in four ecommerce businesses using it. 

Customization

Look for a cart you can shape around your brand and checkout flow, from colors and layout to the number of steps a shopper has to complete. According to Baymard Institute, better checkout design could recover an estimated $260 billion in lost orders.

Features such as Shop Pay’s one-click checkout can reduce friction at payment, while built-in abandoned-cart recovery gives you another chance to bring back shoppers who leave before completing their purchase.

Shipping options

Among US shoppers who abandon for a fixable reason, 40% cite extra costs such as shipping, taxes, and fees, according to Baymard. In a 2026 Bizrate Insights survey of more than 1,000 US adults, free shipping ranked above the lowest price as a reason to choose where to shop online, at a rate of 57% versus 45%.

Choose a cart that can surface shipping costs and delivery estimates early, then support the options your business needs. Shopify supports free, flat-rate, and carrier-calculated shipping, along with transit-time estimates at checkout.

User experience

A cart icon with a live item count lets someone add a product and keep browsing without losing track of what’s already in there. From that icon, a “View cart” option—ideally a slide-out drawer rather than a full-page reload—lets shoppers check contents, adjust quantities, or remove something without leaving the page they were on. 

Ridge Wallet’s cart drawer keeps those actions in one place:

Analytics

Choose cart software that shows you what happens between browsing and purchase. Cart additions, conversion rates, product combinations, and abandoned checkouts can expose where shoppers hesitate or where merchandising opportunities are hiding.

Shopify Analytics brings store activity, transactions, and customer behavior into one reporting environment. The overview dashboard can track metrics such as customers adding to cart, customers reaching checkout, and conversion rate, while reports let you dig further into measures such as add-to-cart rate over time. 

Inventory management

Your cart should know what’s available to sell. Look for inventory management integrations that update stock as orders come in, track quantities by location, and prevent customers from buying products you can’t fulfill.

Shopify’s built-in inventory management tools let you track stock levels, make adjustments, review inventory history, and manage inventory across multiple locations. Shopify can also route online orders based on where stock is available, which becomes especially useful as you add stores, warehouses, or fulfillment partners.

“I used to spend at least four hours manually counting inventory … but not anymore, because Shopify’s inventory system is so easy to manage,” says Mandalyn Renicker, owner of Offbeat Bikes.

Mobile responsiveness

Your cart needs to work as smoothly on a phone as it does on a desktop. In PYMNTS Intelligence’s 2026 Global Digital Shopping Index, consumers globally made 53% of their most recent purchases with mobile devices, up from 48% in 2024.

Before launching with a particular ecommerce cart, test whether shoppers can view their cart, edit quantities, apply discounts, and check out comfortably on a smaller screen. Shopify store owners will also get a head start on mobile usability: every theme in the Shopify theme store is mobile responsive, with browsing and purchasing experiences designed to work across screen sizes.

SEO friendliness

Your shopping cart should sit inside an ecommerce setup that search engines can crawl and understand. Look for support for clean URLs, canonical tags, structured data, sitemaps, redirects, and editable metadata, especially if products or collections generate multiple URLs.

Shopify handles several of these technical SEO tasks automatically, including canonical tags, sitemap generation, and structured data. Shopify themes can also include editable title tags and meta descriptions, while URL redirects help preserve traffic when product or collection URLs change.

5 best shopping cart software for ecommerce in 2026

1. Shopify

Shopify combines shopping cart, checkout, payments, hosting, and store management tools, all in one hosted ecommerce platform.

As for security, it’s built into the platform. Every Shopify store is Level 1 PCI DSS compliant, with SSL included in Shopify hosting. For businesses in supported countries, you can use Shopify Payments for cards and other payment methods without setting up a separate provider; third-party payment providers remain available where needed.

For faster checkout, Shop Pay securely saves a shopper’s shipping and payment information for future purchases. Shop Pay can convert up to 50% better than guest checkout, and at least 10% better than other accelerated checkouts. 

“With the Shop Pay experience, people are getting through checkout faster than with all of our other payment methods,” says Anna M. Peterson, product lead at Everlane.

For international sellers, Shopify Markets can localize currencies, pricing, products, domains, and other parts of the buying experience. Shopify stores can publish in up to 20 languages, with translated content carrying through to checkout.

Price: Basic from $29 per month; Grow from $79 per month; Advanced from $299 per month when billed annually. Shopify Plus starts at $2,300 per month on a three-year term.

2. ShopWired

ShopWired combines hosted ecommerce software, checkout, payments, and store-building tools into one platform. The themes are customizable, and its checkout can be styled with your logo, fonts, colors, custom CSS, and JavaScript.

ShopWired integrates with more than 30 payment gateways, and you can activate multiple gateways without paying ShopWired transaction fees. For international selling, its multicurrency tools can show product and delivery prices in a shopper’s selected currency, choose a currency based on location, and update conversion rates automatically. ShopWired also connects with various tools, including Klaviyo, QuickBooks, Xero, ShipStation, Veeqo, Printful, and Printify.

Price: Pro $29.95 per month; Advanced $59.95 per month; Premium $119.95 per month, with a 14-day free trial and no ShopWired transaction fees.

3. OpenCart

OpenCart is a free, open-source ecommerce platform best suited to retailers who want more control over their store and have the technical resources to manage a self-hosted setup. The software itself has no monthly licensing fee, but you need to arrange hosting and handle installation, updates, security, and any development work.

OpenCart’s marketplace currently lists more than 13,000 modules and themes, spanning payment gateways, shipping methods, marketing, reporting, language packs, and storefront design. The platform also supports multiple currencies, languages, stores, tax rules, coupons, and configurable shipping methods, such as flat-rate, weight-based, and free shipping.

However, with all that flexibility comes more responsibility. The extensions can be free or paid, and custom builds may require ongoing developer support, so compare OpenCart on total operating cost.

Price: Free to download and use; budget separately for hosting, themes or extensions, security, maintenance, and development.

4. Square Websites

Square Websites, formerly Square Online, pairs an ecommerce website and shopping cart with Square’s payments, POS, inventory, and customer tools. This is a natural fit for retailers already using Square in person, because online and offline products, inventory, orders, and customer data can stay connected in the same system. 

The cart supports Apple Pay, Google Pay, Square Pay, Cash App Pay, and Afterpay. Depending on your plan, you can also add abandoned-cart emails, real-time shipping rates, customer accounts, product reviews, and a free-shipping progress bar. As for customization, it’s more template-led than a developer-first platform, but you can adjust layouts, fonts, navigation, banners, and other storefront elements without coding.

Price: Square Free, $0 per month; Square Plus, $49 per month per location; Square Premium, $149 per month per location. Plus and Premium include a 30-day free trial, and payment processing fees apply when you make a sale.

5. Ecwid

Ecwid by Lightspeed takes a slightly different route to ecommerce; you can build a standalone store with its Instant Site builder or add an Ecwid storefront to an existing WordPress, Wix, Squarespace, Joomla, or other website without coding.

Ecwid supports more than 70 payment systems, including cards, PayPal, Apple Pay, and Google Pay, with availability varying by country and provider. The platform can accommodate international sellers, but there’s an important distinction: Ecwid supports all official currencies as a store’s main currency, while its currency-converter apps can display prices in other currencies.

Price: Starter, $5 per month; Venture, $35 per month, Business, $65 per month, Unlimited, $149 per month. Ecwid charges no transaction fees, although your payment provider might. 

How to add a shopping cart to your website

If you already have a Shopify store, your cart is built in, so customize it through your theme settings:

1. Go to Online Store > Themes > Edit theme.
2. Open Theme settings > Cart.
3. Choose the cart style your theme supports, such as drawer, page, or popup notification.
4. Customize the cart template and available sections or blocks, such as order notes or other theme-specific elements.
5. Customize checkout branding separately in the checkout and accounts editor, where Shopify supports changes such as your logo, colors, and fonts.
6. Test the full cart-to-checkout journey before publishing changes.

Add Shopify’s Buy Button

If you already have a non-Shopify website, you can add ecommerce functionality without rebuilding the whole thing. Shopify’s Buy Button sales channel lets you embed products, collections, and a shopping cart into sites such as WordPress, Squarespace, or Wix, while orders remain manageable from your Shopify admin.

Here’s how:

1. Add the Buy Button sales channel. If it isn’t already in your Shopify admin, go to Settings > Sales channels, find Buy Button in the Shopify App Store, and install it. The channel is included with Shopify subscription plans.
2. Add and publish your products. Create the products you want to sell in Shopify, then make them available to the Buy Button sales channel. You can build a Buy Button for one product or an entire collection.
3. Create and customize the button. Go to Sales channels > Buy Button > Create a Buy Button. Choose a product or collection, then adjust the layout, colors, typography, button text, and product variants.
4. Choose the cart behavior. Set the button to add products to an embedded cart, open product details, or take the shopper toward checkout. You can also choose whether checkout opens in a new window or the same browser tab.
5. Paste the embed code into your website. Copy the code Shopify generates and add it to an HTML or code block on your site. You’ll find separate instructions for WordPress, Squarespace, and Wix.
6. Place a test order. Check the experience on desktop and mobile, then run a test transaction to confirm that inventory, shipping, taxes, notifications, and order processing behave as expected.

For campaigns where you don’t need a full embedded cart, Shopify also gives you cart permalinks. These reusable links can preload products and quantities, apply discounts, localize checkout, or send shoppers to a prepared cart or checkout from an email, social post, landing page, or message.