Catalog
Explore and compare curated open-source alternatives. Filter by platform, licensing, or deployment mode to find your perfect fit.
27 tools found
Hyperswitch
Hyperswitch is an open-source payment orchestration switch that routes transactions across Stripe, Adyen, and other gateways to reduce processing costs.
45.7kLinuxmacOSWindowstoday
Apache-2.0Payments & Billing
Medusa
Medusa is an open-source headless commerce platform replacing Shopify with modular TypeScript services, workflows, and complete PostgreSQL control.
37.1kLinuxmacOSWindows1d ago
MITE-commerce Platforms
Bagisto
Bagisto is an open-source Laravel eCommerce platform that replaces SaaS services like Ecwid with self-hosted multi-channel stores and zero SKU fees.
28.3kLinuxmacOSWindowstoday
MITE-commerce Platforms
Saleor
Saleor is an open-source headless commerce platform that replaces Shopify with GraphQL APIs, total data ownership, and zero platform transaction fees.
23.5kLinuxmacOSWindows1d ago
BSD-3-ClauseE-commerce Platforms
Spree Commerce
Spree Commerce is a self-hosted headless e-commerce platform that replaces hosted monoliths with a decoupled Next.js storefront and zero transaction fees.
15.8kLinuxmacOSWindowstoday
BSD-3-ClauseDigital Downloads & Sales
Lago
Lago is an open-source metering and billing engine replacing Stripe Billing with self-hosted usage tracking and decoupled payment gateway orchestration.
10.7kLinuxmacOSWindowstoday
AGPL-3.0Payments & Billing
EasyPThe modern standard for Protobuf workflows
Lint, codegen, breaking-change checks and dependency management in one Git-native CLI. Open source, no registry lock-in.
lintgeneratebreakingeasyp.lock
easyp.tech
WooCommerce
WooCommerce replaces SaaS store platforms like Shopify with an open-source PHP commerce engine featuring custom database tables and full stack control.
10.6kLinuxmacOSWindowstoday
GPL-3.0E-commerce Platforms
Invoice Ninja
Invoice Ninja is an open-source, self-hosted invoicing and billing platform that replaces single-rail tools with multi-gateway client management.
10.5kLinuxmacOSWindows2d ago
AGPL-3.0Payments & Billing
Polar
Polar is an open-source Merchant of Record replacing Lemon Squeezy with native event-based usage metering, automated GitHub entitlements, and typed SDKs.
10.5kLinuxmacOSWindowstoday
Apache-2.0Digital Downloads & Sales
Gumroad
An open-source digital storefront and checkout platform that connects to your own Stripe account, replacing 10% platform cuts with self-hosted control.
10.1kWebtoday
MITPayments & Billing
BTCPay Server
BTCPay Server is a self-hosted crypto payment processor that lets teams accept Bitcoin with zero transaction fees and full control over private keys.
7.9kLinuxmacOSWindows1d ago
MITPayments & Billing
Flexprice
Open-source usage-based billing engine replacing Stripe Billing with real-time metering, credit wallets, and self-hosted control.
6.9kWebtoday
AGPL-3.0Payments & Billing
Page 1 of 3