Open-source self-hosted payment gateways in 2026

5 open-source projects, ranked by GitHub stars and how recently each was worked on. Btcpayserver leads with 7.9k stars, ahead of Bitcart. 4 had code pushed in the last three months. Most common licenses: AGPL-3.0 (3) and MIT (2). Commercial self-hosted payment gateways are listed separately.

All open-source self-hosted payment gateways, ranked

Complete systems you can adopt 5

1
Btcpayserver btcpayserver
Accept Bitcoin payments. Free, open-source & self-hosted, Bitcoin payment processor.

Complete system Production-ready You want to accept Bitcoin directly into your own wallet without a third-party processor.
★ 7.9k MIT C# Active, pushed today
2
Bitcart bitcart
Bitcart is a free and open-source self-hosted payment processor for BTC, LTC, BCH, XMR, ETH, TRX, USDT and more

Complete system Usable You want to accept several cryptocurrencies, not just Bitcoin, on your own server.
★ 1k MIT Python Active, pushed today
3
Open Payment Host abishekmuthian
Sell what you want without paying double commissions. Self hosted alternative for Gumroad, Buy Me a Coffee, Ko-fi etc.

Complete system Experimental You sell a few digital products and want to avoid platform commissions on top of Stripe fees.
★ 243 AGPL-3.0 Go Active, pushed 34 days ago
4
OwnPay own-pay
Self-hosted, open-source payment gateway. Manage brands, gateways, and transactions on your own infrastructure.

Complete system Experimental You want to test a self-hosted gateway layer over local payment methods and can audit it.
★ 213 AGPL-3.0 PHP Active, pushed today
5
PipraPay PipraPay
Empower your payment operations with PipraPay, the free and open-source, plugin-based platform for automated payments and full workflow control.

Complete system Experimental You sell online in Bangladesh and want to automate mobile wallet payment confirmation yourself.
★ 330 AGPL-3.0 PHP Slowing, pushed 5 months ago

Compared head to head

GoCardless vs Open Payment Host Btcpayserver vs Open Payment Host Bitcart vs Open Payment Host

Also under payment platforms and libraries

Payment orchestration platforms Payment libraries

Open-source licenses

Network copyleft: 3. Like GPL, and running a changed version as a web service counts as distributing it, so its users get the source too.
Permissive: 2. Use it anywhere, including in closed products. You keep the copyright notice; Apache-2.0 also grants patent rights.

Languages

PHP 2, C# 1, Python 1 and Go 1.

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