Alternatives / Stripe

2 open-source alternatives

2 Best Open Source Stripe Alternatives in 2026

Looking for an open source Stripe alternative? We compared 2 open source platforms for selling digital products and SaaS: Gumroad and Polar. Neither is a payment processor like Stripe. They are commerce platforms that handle checkout, tax, and delivery for you in exchange for a fee.

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Written by Maxime DERAME

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Best Stripe alternatives at a glance

AlternativeBest forLicense
PolarSelling SaaS and digital products with billing and tax handledApache-2.0
GumroadCreators selling digital productsMIT

How we chose these Stripe alternatives

We looked for open-source tools that cover Stripe's core use for small online businesses: taking payments, handling billing, and delivering products. We verified each project's license, recent activity, stars, and self-hosting in its repository. No open-source project replaces a card network or acquirer, so both of these sit on top of a payment infrastructure and act as sales platforms. See our methodology for the full criteria.

Important: neither is a payment processor

Gumroad and Polar do not move money on their own network. They are platforms that handle checkout, subscriptions, and delivery, and they rely on existing payment infrastructure. If you need card processing for a marketplace or a custom product, you will still need a payments provider.

Polar for SaaS billing

Polar acts as a merchant of record for digital products and SaaS, handling tax, and automates benefits such as license keys and GitHub or Discord access, with support for subscriptions and usage-based billing. It is Apache-2.0, and its pricing is listed at 4% plus 40 cents per transaction.

Gumroad for creators

Gumroad is a marketplace and storefront where creators sell digital products such as courses, ebooks, and software, with file hosting and delivery handled for them. Its code is MIT-licensed, but using it means paying its platform fees unless you run your own deployment.

License details

Polar is Apache-2.0 and Gumroad is MIT.

Maintenance status

Both projects had commits within days of this update.

Why look for a Stripe alternative?

Stripe is a proprietary payment processor that charges per transaction and leaves tax, invoicing, and delivery to you or to add-ons. Open-source commerce platforms let you inspect the code, build on a billing system you can customize, and in some cases use a merchant-of-record model that handles sales tax for you, at the cost of platform fees and less flexibility than a general payments API.

polar.sh
1

Polar

Billing and merchant-of-record platform for digital products and SaaS.

Polar is an Apache-2.0 open-source payments and billing platform for digital product and SaaS businesses. It acts as the merchant of record to handle tax, automates benefits such as license keys and GitHub or Discord access, and supports subscriptions and usage-based billing. Its hosted pricing is listed at 4% plus 40 cents per transaction.

10.4K796Apache-2.0Self-hosted

Pricing: Free to self-host the code; the hosted service charges 4% plus 40 cents per transaction.

  • Merchant of record that handles tax
  • Subscriptions and usage-based billing
  • Automated benefits such as license keys and repo access
  • Not a general payment processor
  • Platform fees apply on the hosted service
gumroad.com
2

Gumroad

Open-source storefront for selling digital products.

Gumroad is an MIT-licensed marketplace and storefront where creators sell digital products such as courses, software, ebooks, and music, with payments, file hosting, and delivery handled for them. It is a sales platform rather than a payment processor, and the hosted service charges platform fees.

9.9K2.1KMITSelf-hosted

Pricing: Free to self-host the code; the hosted service charges fees on sales.

  • Complete creator storefront with delivery
  • MIT-licensed codebase
  • Large and active project
  • Not a payment processor
  • Hosted service takes a share of revenue

Compare Stripe alternatives

AlternativeTypeLicenseSelf-hostedBest for
PolarBilling and merchant of recordApache-2.0Yes (code is open)SaaS and digital products
GumroadCreator storefrontMITYes (code is open)Selling digital products

Which one should you choose?

Want billing and tax handled for a SaaS or digital product

Polar is an Apache-2.0 merchant-of-record platform with subscriptions, usage-based billing, and automated benefits.

Polar

Want to sell courses, ebooks, or software as a creator

Gumroad handles storefront, payments, file hosting, and delivery, with an MIT-licensed codebase.

Gumroad