Best Open-Source Alternatives to Payments Tools

Paying for commercial Payments software? Here are 11 popular Payments tools in this category, each mapped to real, actively-maintained open-source alternatives - verified against GitHub, with stars, license, and last-commit data so you can judge project health before switching.

Affirm

6 open-source alternatives

Bolt

6 open-source alternatives

Chargebee

1 open-source alternative

GoCardless

1 open-source alternative

Klarna

1 open-source alternative

Mollie

2 open-source alternatives

Paddle

7 open-source alternatives

PayPal

1 open-source alternative

Recurly

1 open-source alternative

Stripe

3 open-source alternatives

Worldpay

3 open-source alternatives

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