Best Open Source Alternatives to PayPal Braintree

Compare the best free and open-source alternatives to PayPal Braintree — self-hosted and desktop replacements you fully control, ranked by GitHub stars, license and platform support.

Curated by open-source.store · Updated November 2026 · 1 alternatives

PayPal Braintree

Proprietary SaaS

PayPal Braintree alternatives compared

Open-source alternatives to PayPal Braintree, compared by stars, license and platform
Tool		License	Platforms	Self-hosted
Formance	533	—	Web	No	Nov 2026	Visit

Top open-source PayPal Braintree alternatives

Formance533

Open-source financial ledger and money flow engine with double-entry tracking, Numscript transaction modeling, and automated bank reconciliation.

Web

vs PayPal Braintree: a free, open-source option you fully control.

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EasyP

Promoted

The 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

go · ts · java generated

$ easyp breaking

backward compatible