Best Open Source E-Commerce Platforms in 2026

Shopify costs $39-399/month + 2.9% transaction fees. Here are the best open source e-commerce platforms with zero transaction fees.

Quick Comparison

Tool	Architecture	License	Stars	Language
Medusa	Headless (API)	MIT	26K+	Node.js
Saleor	Headless (GraphQL)	BSD-3	21K+	Python
WooCommerce	Traditional (WordPress)	GPL-3.0	9K+	PHP
Bagisto	Traditional (Laravel)	MIT	14K+	PHP
Shuup	Marketplace	AGPL-3.0	2.1K+	Python

Key Differences

Medusa — Best for Developers

• Modular architecture
• REST API
• Stripe, PayPal, Klarna plugins
• Admin dashboard
• Next.js starter storefront
• Multi-warehouse inventory
• No transaction fees

Saleor — Best GraphQL Commerce

• GraphQL-first API
• Dashboard (React)
• Multi-channel selling
• Multi-warehouse
• Webhooks and apps
• Strong B2B features

WooCommerce — Largest Ecosystem

• WordPress plugin
• 1000+ extensions
• Every payment gateway
• Huge community
• Theme marketplace
• Most hosting options

Choosing the Right Tool

Need	Choose
Modern headless commerce	Medusa
GraphQL API	Saleor
WordPress ecosystem	WooCommerce
Laravel-based	Bagisto
Multi-vendor marketplace	Shuup

Cost Savings (at $50K/month revenue)

Platform	Annual Cost
Shopify Basic + fees	$21,888/year
Medusa + Stripe only	$17,760/year (Stripe fees only)
Savings	$4,128/year (no platform fees)

At $200K/month revenue, savings reach $16,512/year.

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Compare all e-commerce platforms on OSSAlt — features, payment integrations, and pricing side by side.