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Open-source repos for payments

34 repos tagged Payments, sorted by GitHub stars. Add filters from the other category types to narrow the list.

34repos tagged Payments

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  1. TryGhost/Ghost

    Publishing platform for blogs and newsletters with paid memberships built in.

    CMS, Newsletter publishing, Content writing, Web, Email, Marketing, Media and publishing, Creators, Newsletters, Self hosters

    55.7k starsMITUpdated 3 Nov 2026

  2. juspay/hyperswitch

    Payments orchestration layer in Rust that routes transactions across many processors.

    Web, Stripe, Engineering, Finance, Finance and fintech, E-commerce

    45.7k starsApache-2.0Updated 2 Nov 2026

  3. medusajs/medusa

    Headless Node.js commerce engine with modules for products, carts, orders, payments and fulfillment.

    Storefronts, Inventory, Web, Engineering, Operations, E-commerce, Retail

    37.1k starsOtherUpdated 3 Nov 2026

  4. tigerbeetle/tigerbeetle

    Financial transactions database built for high-throughput double-entry accounting.

    Accounting, Engineering, Finance and fintech

    17.3k starsApache-2.0Updated 3 Nov 2026

  5. Qloapps/QloApps

    Hotel property management system with booking engine and hotel website in one package.

    Booking, Storefronts, Web, Operations, Sales, Hospitality and restaurants, Travel, Self hosters

    14.5k starsOSL-3.0Updated 30 Oct 2026

  6. getlago/lago

    Metering and usage-based billing engine that turns events into invoices.

    Subscription billing, Invoicing, Web, Stripe, Finance, Engineering, SaaS, Finance and fintech

    10.8k starsAGPL-3.0Updated 3 Nov 2026

  7. woocommerce/woocommerce

    WordPress plugin that turns a WordPress site into an online store.

    Storefronts, WordPress, WooCommerce, Operations, Engineering, E-commerce, Retail

    10.6k starsGPL-2.0Updated 3 Nov 2026

  8. polarsource/polar

    Billing and checkout for digital products and subscriptions, with merchant-of-record option.

    Subscription billing, Web, Stripe, Finance, Sales, SaaS, Creators, Indie hackers, Open-source maintainers

    10.5k starsApache-2.0Updated 3 Nov 2026

  9. invoiceninja/invoiceninja

    Invoicing, quotes, expenses and time tracking with a client portal and online payments.

    Invoicing, Web, Finance, B2B services, Agencies, Solo founders

    10.5k starsOtherUpdated 2 Nov 2026

  10. btcpayserver/btcpayserver

    Self-hosted Bitcoin payment processor for accepting crypto in stores and invoices.

    Invoicing, Web, Docker, Finance, Crypto and web3, E-commerce, Self hosters

    7.9k starsMITUpdated 2 Nov 2026

  11. t3dotgg/stripe-recommendations

    Practical guide to wiring Stripe subscriptions without sync bugs.

    Subscription billing, Stripe, Engineering, SaaS, Indie hackers

    6.5k starsMITUpdated 8 Feb 2025

  12. killbill/killbill

    Java subscription billing and payments platform with a plugin system.

    Subscription billing, Invoicing, Web, Finance, Engineering, SaaS, Finance and fintech

    5.8k starsApache-2.0Updated 29 Oct 2026

  13. opensourcepos/opensourcepos

    Web point-of-sale system with inventory, sales, receipts and reporting.

    Inventory, Point of sale, Invoicing, Web, Docker, Operations, Sales, Retail, Hospitality and restaurants, Self hosters

    4.5k starsOtherUpdated 2 Nov 2026

  14. HiEventsDev/Hi.Events

    Self-hosted event ticketing and management with checkout, check-in and reports.

    Booking, Storefronts, Web, Stripe, Operations, Marketing, Creators, Nonprofit, Self hosters

    4.1k starsOtherUpdated 2 Nov 2026

  15. pretix/pretix

    Ticket shop for conferences, festivals and events with seating, check-in and payments.

    Booking, Storefronts, Web, Stripe, Operations, Marketing, Media and publishing, Nonprofit, Self hosters

    2.6k starsOtherUpdated 2 Nov 2026

  16. laravel/cashier-stripe

    Laravel package for Stripe subscriptions, invoices and checkout.

    Subscription billing, Stripe, Engineering, SaaS

    2.5k starsMITUpdated 20 Oct 2026

  17. pay-rails/pay

    Rails engine for payments and subscriptions across Stripe, Paddle and Braintree.

    Subscription billing, Stripe, Engineering, SaaS

    2.3k starsMITUpdated 2 Nov 2026

  18. stripe/stripe-cli

    Command-line tool to test webhooks, tail logs and call the Stripe API locally.

    Stripe, Engineering, SaaS, E-commerce

    2.2k starsApache-2.0Updated 3 Nov 2026

  19. stripe/ai

    Stripe's agent toolkit and MCP server for creating payments, invoices and customers from AI agents.

    Invoicing, AI agents, Stripe, Finance, Engineering, SaaS, E-commerce

    2k starsMITUpdated 2 Nov 2026

  20. mercurjs/mercur

    Multi-vendor marketplace built on Medusa, with seller panels, commissions and payouts.

    Storefronts, Web, Engineering, Operations, E-commerce, Retail

    1.9k starsMITUpdated 2 Nov 2026

  21. dj-stripe/dj-stripe

    Django app that syncs Stripe objects into Django models for billing logic.

    Subscription billing, Stripe, Engineering, SaaS

    1.8k starsMITUpdated 3 Nov 2026

  22. stripe/stripe-mock

    Mock HTTP server that mimics the Stripe API for offline tests.

    CI/CD, Stripe, Engineering, SaaS

    1.7k starsMITUpdated 29 Oct 2026

  23. alfio-event/alf.io

    Ticket reservation system for events with payments, check-in and attendee management.

    Booking, Web, Docker, Sales, Operations, Events, Nonprofit, Self hosters

    1.6k starsGPL-3.0Updated 2 Nov 2026

  24. formancehq/ledger

    Programmable double-entry ledger for tracking money movements in fintech apps.

    Accounting, Web, Engineering, Finance, Finance and fintech

    1.5k starsUpdated 3 Nov 2026

  25. enatega/food-delivery-multivendor

    Multi-vendor food delivery system with customer, rider, restaurant apps and admin panel.

    Storefronts, Android, iOS, Operations, Hospitality and restaurants, Logistics

    1.4k starsMITUpdated 7 Oct 2026

  26. codelitdev/courselit

    Self-hosted alternative to Teachable for selling courses and downloads and running a blog.

    Learning management, Storefronts, Web, Docker, Marketing, Education, Creators, Course creators, Solo founders

    1.3k starsAGPL-3.0Updated 30 Oct 2026

  27. bitcart/bitcart

    Self-hosted cryptocurrency payment processor with store and invoice features.

    Web, Docker, Finance, Crypto and web3, E-commerce, Self hosters

    1k starsMITUpdated 2 Nov 2026

  28. lakasir/lakasir

    Point-of-sale and inventory app for small shops, built with Laravel.

    Inventory, Point of sale, Web, Operations, Sales, Retail, Local business

    917 starsGPL-3.0Updated 3 Nov 2026

  29. blnkfinance/blnk

    Double-entry ledger service with balances, inflight transactions and reconciliation.

    Accounting, Web, Engineering, Finance, Finance and fintech

    579 starsApache-2.0Updated 2 Nov 2026

  30. moov-io/ach

    Go library to read, write and validate US ACH payment files.

    Engineering, Finance, Finance and fintech

    570 starsApache-2.0Updated 1 Nov 2026

  31. Kyon147/laravel-shopify

    Laravel package for building Shopify apps with auth, billing and webhooks handled.

    Storefronts, Shopify, Engineering, E-commerce, SaaS

    498 starsMITUpdated 27 Oct 2026

  32. impress-org/givewp

    WordPress donation plugin with forms, donor management and recurring giving.

    Fundraising and donations, Forms and surveys, WordPress, Stripe, Marketing, Finance, Nonprofit

    366 starsGPL-3.0Updated 4 Nov 2026

  33. houdiniproject/houdini

    Fundraising platform for nonprofits with donation pages, recurring gifts and campaigns.

    Fundraising and donations, Web, Stripe, Marketing, Finance, Nonprofit

    237 starsOtherUpdated 17 Jul 2026

  34. Refferq/Refferq

    Open-source affiliate and referral program software for SaaS products.

    Lead generation, Web, Stripe, Marketing, Sales, SaaS, Affiliate, Self hosters

    134 starsMITUpdated 19 Oct 2026