DaxPayOpen-Source Payment System

Open-source, secure, extensible unified payment system. Making payments simpler.

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Payment

Payment, refund, transfer, and profit-sharing capabilities covering QR code, JSAPI, and barcode scan. Dynamic routing and aggregated payment with one-code-multiple-pay.

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Multi-Tenant

Merchant and operator portals supporting multiple merchants and service-provider mode. Independent payment product configuration, data isolation, and multi-application management.

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Unified API

Encapsulates payment channels into a unified HTTP RESTful API. Multi-language SDKs available to accelerate integration.

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Data Security

RSA signing for tamper-proof requests, AES-GCM field-level encryption, sensitive data masking, RBAC, and end-to-end log tracing.

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All Platforms

PC / Mobile dual-adaptive payment gateway. Mobile supports Alipay, WeChat, and Douyin mini-programs and Android APP.

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Internationalization

CJK + ASEAN multilingual support with multi-timezone auto-adaptation. Stripe international channel integrated, with PayPal and more reserved for future extension.

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Quick Deploy

One-click Docker Compose deployment with a web-based visual installer. Self-building from source is also supported.

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Tech Stack

Java 25 · Spring Boot 4.1 · PostgreSQL / Vue 3.5 full-stack (Web / H5 / mini-programs)

Supported Payment Channels

Built-in domestic mainstream channels, extended support for more third-party & international payment channels