https://github.com/shurco/litecart

Introducing litecart. This is an open source shopping-cart in 1 file of embedded database (SQLite), convenient dashboard UI and simple site. Developed as a free alternative to Gumroad.

Features:

- Simple and fast

- Support for popular payment systems (including payment with cryptocurrency )

- Sell files and license keys

- Lightweight and efficient

- Easily customizable

- Convenient administration panel

- Hardware compatibility

- Built-in https support

Thanks!