Open source ecommerce platforms compared (2026)

Running an online store on a SaaS platform like Shopify works well until it doesn’t. Monthly fees climb as you add features, transaction charges eat into margins, and you’re locked into someone else’s infrastructure. Open source ecommerce platforms change that. By hosting the software yourself, you pay nothing for a platform licence and gain full control over how your store looks, functions and scales.

The trade-off is that you are solely responsible for your own site. That’s where managed hosting becomes relevant, covering hosting, automatic updates and server-level maintenance, which reduces the technical burden considerably. The right combination of open source software and a well-configured hosting environment keeps costs down without leaving you exposed. This post covers the open source ecommerce platforms worth your attention in 2026, with an honest look at what each one needs to run well.

Why go open source?

Before getting into the platforms themselves, it helps to understand what you gain and what you give up when choosing open source over a managed SaaS service. The advantages are real, but so are the responsibilities.

• No platform fees. The software itself is free. Your costs are hosting, a domain name and any premium extensions you choose to add. For a small store on shared hosting, that can work out significantly cheaper than a SaaS subscription.
• Full ownership of your data. Your store, your database, your customer records. Nothing sits on a third party’s infrastructure unless you choose to put it there. Want to move? Move.
• Customisation without limits. You have access to the source code. If the software doesn’t do what you need, you or your developer can change it.
• No platform transaction fees. SaaS platforms often charge a percentage on top of your payment gateway fees. Open source platforms do not. You only pay what your payment provider charges.

The flip side is that you are responsible for keeping things running. Software updates, SSL certificates, server performance, backups and security patches all need managing. A good hosting provider handles much of this at the server level, but you still need to maintain the application itself.

WooCommerce

WooCommerce is not a standalone solution. It is a plugin that adds ecommerce functionality to WordPress, and that distinction matters. If you already run a WordPress site, or you’re comfortable with the WordPress ecosystem, WooCommerce lets you add a storefront without rebuilding anything from scratch.

With around 29% market share among the top one million ecommerce sites (according to BuiltWith), WooCommerce is the most widely used ecommerce platform on the web. That popularity means a large library of extensions, themes and community support. For most small to medium UK businesses selling physical or digital products, it is the natural starting point.

It runs well on web hosting for smaller catalogues. Larger stores with thousands of products, heavy traffic or complex product configurations will benefit from WordPress hosting or a VPS where you have dedicated resources.

PrestaShop

PrestaShop is a dedicated ecommerce platform built on the Symfony PHP framework. Unlike WooCommerce, it is not bolted onto a CMS. It was designed from the ground up to run an online store, and that focus shows in features like built-in multi-currency support, catalogue management and a modular architecture that lets you add only what you need.

The platform powers over 300,000 stores and has a strong presence in Europe, which makes it a reasonable option for UK businesses selling internationally. Its admin interface is more opinionated than WooCommerce’s, which can be a positive (less fiddling to get a working store) or a negative (less flexibility without modules).

PrestaShop runs on standard PHP hosting, so it works on a cPanel hosting plan. Be aware that many of the more useful modules are paid add-ons, so the “free” platform can become expensive once you start filling in the gaps.

OpenCart

OpenCart is a PHP-based ecommerce platform with a clean admin interface and a straightforward approach to running an online store. Its multi-store feature is a standout: you can manage several separate storefronts from a single admin panel, each with its own domain, theme and product catalogue.

The platform has a marketplace of over 13,000 extensions and themes, which gives you plenty of room to extend functionality. It runs on standard PHP/MySQL hosting, making it compatible with most shared hosting plans.

Where OpenCart falls short is in its built-in SEO and content marketing capabilities. If organic search traffic is a major part of your growth plan, you will likely need extensions to fill the gaps. The platform also has no official customer support, which means you are relying on community forums and documentation when things go wrong.

Magento Open Source (Adobe Commerce)

Magento is the platform you graduate to when your store outgrows everything else. Now part of Adobe’s ecosystem (the paid version is branded Adobe Commerce), the open source edition remains free and is used by over 250,000 stores worldwide, many of them enterprise-scale operations handling thousands of products and heavy daily traffic.

The feature set reflects that audience. Magento handles complex product types and advanced pricing rules out of the box. It also supports multi-warehouse inventory and B2B selling. Its API is well documented, making it a strong choice for headless commerce setups where the storefront is decoupled from the backend.

The trade-off is resource demand. Magento is not a platform you run on shared hosting. It needs a VPS at minimum, ideally with dedicated resources, Elasticsearch (or OpenSearch), Redis for caching and a properly configured PHP environment. It also has a steep learning curve. Without development experience or budget for a developer, Magento will be frustrating to set up and maintain.

Drupal Commerce

Drupal Commerce is an ecommerce module for the Drupal CMS. If your site already runs on Drupal, or you need a platform where content and commerce are tightly integrated, it is worth considering. Drupal’s content management capabilities are stronger than most dedicated ecommerce platforms, which gives you an edge if content marketing and SEO are central to your strategy.

The platform is popular with larger organisations. Brands like Cartier use it, which speaks to its capability at scale. It connects well to external systems through its RESTful API, and the Drupal community, while smaller than WordPress’s, is technically capable.

The barrier to entry is higher than WooCommerce or PrestaShop. Drupal itself has a steeper learning curve than WordPress, and building a store requires assembling multiple contributed modules rather than installing a single plugin. You will likely need a developer or agency to get a Drupal Commerce store off the ground.

How to choose

The right platform depends on where your business is now and where it needs to go. If you are starting out and want the lowest barrier to entry, WooCommerce is the default recommendation for most UK small businesses. You get the entire WordPress ecosystem alongside a purpose-built, well-tested ecommerce tool that a large number of UK stores already rely on.

If you want a dedicated ecommerce platform without the WordPress layer, PrestaShop offers a focused toolset with strong multi-currency support. OpenCart suits businesses running multiple storefronts from one admin panel, which works well for multi-regional operations. If content marketing drives your business and your store sits within a larger content-heavy site, Drupal Commerce integrates commerce into a CMS built for exactly that purpose.

Magento is the likely choice when building an enterprise-scale store with complex product catalogues, B2B requirements or thousands of SKUs. It comes at the cost of significant technical resource and server overhead, but for stores that have outgrown everything else, it is the platform with the depth to match.

Getting your store online

Whichever platform you choose, your hosting environment plays a direct role in how well your store performs. Page speed, uptime and server response times all affect conversions, and they all start at the server level.

WooCommerce, PrestaShop and OpenCart run well on our ecommerce hosting. Larger Magento stores benefit from the dedicated resources of a VPS or our Magento hosting plans.

If you have questions about which setup suits your store, get in touch and our team will point you in the right direction.