Free eCommerce Software: No-Cost Platforms for Online Stores

What "Free" Actually Means in eCommerce

The word "free" in ecommerce software can mean very different things, and understanding these differences saves you from expensive surprises.

Open source free means the software is released under a license (GPL, MIT, Apache, BSD) that lets you download the complete source code, install it on any server, modify it however you want, and use it for any purpose, including commercial, with no time limit and no licensing fees. WooCommerce, PrestaShop, Magento Open Source, Saleor, Medusa, and OpenCart are all free in this sense. You own your installation, you control your data, and nobody can revoke your access or force you to upgrade to a paid plan.

Freemium "free" means the vendor offers a limited version at no cost to attract users who will eventually need features locked behind a paid plan. Shopify does not have a free tier. Wix offers a free plan but does not allow custom domains or payment processing. Square Online has a free plan but adds Square branding and limits features. BigCommerce has no free option. These "free" versions are marketing tools, not complete ecommerce solutions.

Open-core "free" falls between the two. The vendor releases a genuinely usable open source version but reserves premium features for a paid commercial edition. Odoo follows this model, with a free Community Edition that includes basic ecommerce but reserves advanced features for the Enterprise edition. Shopware has a free Community Edition alongside its paid commercial versions. These platforms are genuinely usable at no cost, but you may hit feature limitations that push you toward the paid version as your business grows.

This guide focuses exclusively on platforms that are fully free under open source licenses, where the complete feature set is available without paying the software vendor.

The Real Costs of "Free" Software

Open source ecommerce software is free, but running an online store is not. Being honest about the real costs prevents unpleasant surprises and helps you budget accurately.

Hosting is your primary ongoing expense. Costs range from $5 per month for basic shared hosting (suitable for low-traffic WooCommerce or OpenCart stores) to $20 to $100 per month for a VPS (suitable for most growing stores) to $100 to $500+ per month for managed or dedicated hosting (necessary for high-traffic stores and Magento installations). A typical small to medium store on a well-configured $30 per month VPS handles several thousand monthly visitors and hundreds of orders without performance issues.

Domain registration costs $10 to $15 per year for a .com domain. SSL certificates are free via Let's Encrypt, which every modern hosting provider supports and most configure automatically.

Payment processing fees apply regardless of platform. Stripe charges 2.9% plus $0.30 per transaction. PayPal charges 2.99% plus $0.49 per transaction for standard checkout. These fees are identical whether you use WooCommerce, Shopify, or any other platform, so they are not a differentiator in the free vs. paid platform decision.

Premium extensions may be needed depending on your requirements. WooCommerce itself is free, but WooCommerce Subscriptions costs $239 per year, WooCommerce Bookings costs $249 per year, and some specialized payment gateway plugins carry a price tag. PrestaShop's marketplace charges for many modules, with popular add-ons priced between $50 and $300. However, the core commerce features of both platforms, including basic product management, checkout, payments, shipping, and orders, work fully without any paid extensions.

Development costs vary enormously based on your approach. A WooCommerce store using a free theme with default configuration costs nothing beyond hosting. A custom-designed store with specialized functionality might require $2,000 to $20,000 in development work. A headless Saleor or Medusa project with a custom-built frontend typically starts at $10,000 and can reach $50,000 or more for complex implementations. However, development costs are investments in your specific business requirements, not platform taxes.

Best Free eCommerce Platforms

WooCommerce

WooCommerce powers over 37% of all online stores, making it the single most popular ecommerce platform of any kind. Released under the GPL license, it is completely free to download and use on any WordPress installation. WooCommerce handles physical products, digital downloads, variable products (sizes, colors), grouped products, and external or affiliate products. The checkout supports guest checkout, customer accounts, multiple payment gateways, tax calculation by zone, and both flat-rate and real-time shipping calculations.

The free plugin ecosystem extends WooCommerce's capabilities significantly. Free payment gateway plugins for Stripe, PayPal, Square, and dozens of regional processors. Free shipping plugins for USPS, UPS, FedEx, and table rate shipping. Free marketing plugins for email integration, SEO optimization, and social media connectivity. The official WordPress plugin directory lists over 8,000 free plugins specifically tagged for WooCommerce compatibility.

Hosting cost for WooCommerce starts at $3 to $10 per month on shared hosting and $20 to $50 per month on a VPS or managed WordPress host. This makes WooCommerce the lowest total-cost ecommerce option for small stores.

PrestaShop

PrestaShop is released under the Open Software License (OSL 3.0) and is free to download and self-host. With over 250,000 active stores, it is the most widely used dedicated ecommerce platform (as opposed to WooCommerce, which is a plugin on a CMS). PrestaShop includes more built-in features than WooCommerce without requiring extensions: multi-language support for 65 languages, multi-currency with automatic exchange rates, advanced product combinations (variants), stock management with supplier tracking, built-in SEO tools, and comprehensive tax rule configuration.

The back office is extensive and well-organized, providing store owners with detailed control over catalog management, order processing, customer management, shipping carriers, payment methods, and marketing promotions. PrestaShop generates detailed statistics on sales, visits, conversion rates, and customer behavior without requiring an external analytics integration.

Hosting requirements are modest. A VPS with 2GB RAM running PHP 8.x and MySQL handles a PrestaShop store with 20,000 products and several hundred daily orders. Hosting costs typically range from $15 to $60 per month depending on traffic and catalog size.

Magento Open Source

Magento Open Source is released under the Open Software License and provides enterprise-grade ecommerce capabilities at no licensing cost. It handles complexities that WooCommerce and PrestaShop require extensions for: multi-store management from a single admin panel, configurable products with dependent attributes, bundled products where customers choose components, tiered pricing by customer group and quantity, and advanced catalog search powered by Elasticsearch.

Magento's free feature set is the most comprehensive in open source ecommerce. Content staging, customer segmentation, advanced product attributes, layered navigation, multiple address checkout, persistent shopping cart, tax calculation with rules by zone and product class, and a REST and GraphQL API that supports headless frontend development are all included in the free open source version.

The cost trade-off is infrastructure and expertise. Magento requires more powerful hosting ($100 to $500 per month for production), Elasticsearch for search, Redis for caching, and typically Varnish for full-page caching. Development and customization costs are higher because the platform is complex and Magento developers command premium rates. Magento is free software with enterprise costs for everything around it.

Medusa

Medusa is released under the MIT license and is completely free for any use, including commercial. Built in Node.js with TypeScript, Medusa provides a headless commerce backend with a modular plugin architecture. The core handles products, orders, customers, payments, fulfillment, inventory, pricing, discounts, and gift cards. A Next.js starter storefront and a React admin dashboard are included and ready to customize.

Medusa's MIT license is the most permissive of any major ecommerce platform, placing no restrictions whatsoever on how you use, modify, or distribute the software. There are no copyleft requirements, no attribution mandates beyond what the MIT license specifies, and no commercial use limitations.

Hosting costs are comparable to other Node.js applications: $10 to $50 per month on platforms like Railway, Render, or DigitalOcean App Platform, or $20 to $100 per month on a self-managed VPS with PostgreSQL and Redis.

Saleor

Saleor is released under the BSD 3-Clause license and is free to use, modify, and deploy. Built on Python with Django, Saleor provides a GraphQL commerce API with a polished React admin dashboard. The platform handles multi-channel commerce (separate storefronts with independent pricing and availability), multi-warehouse inventory, draft orders, gift cards, flexible discount rules, and webhook-based extensibility.

Saleor also offers a hosted cloud service for teams that do not want to manage infrastructure, but the open source self-hosted version is feature-complete and production-ready with no artificial limitations.

OpenCart

OpenCart is released under the GPL and provides a lightweight, easy-to-install ecommerce platform. It includes multi-store management, a built-in affiliate system, discount coupons, and an extension marketplace with over 13,000 modules (many free). OpenCart runs on minimal hosting resources, with shared hosting at $5 to $15 per month being sufficient for small stores. The admin interface is straightforward and requires no technical knowledge for daily operations.

Comparing Free Platforms by Use Case

Lowest total cost for a small store: WooCommerce on shared hosting with a free theme. Total annual cost under $150 including hosting and domain.

Best built-in features without paid add-ons: PrestaShop includes multi-language, multi-currency, advanced inventory, and comprehensive reporting at no cost. Features that cost $200 to $500 in WooCommerce premium plugins come built in.

Best for complex product catalogs: Magento Open Source, if you can afford the hosting and development costs. No other free platform matches its catalog management depth.

Best for developer-led projects: Medusa for JavaScript teams, Saleor for Python teams. Both provide modern APIs and clean codebases that developers enjoy working with.

Simplest to set up and run: OpenCart for a standalone store, WooCommerce for a store integrated with a content website.