> For the complete documentation index, see [llms.txt](https://docs.opencart.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.opencart.com/getting-started.md).

# Getting Started

- [System Requirements](https://docs.opencart.com/getting-started/system-requirements.md)
- [Installation](https://docs.opencart.com/getting-started/installation.md)
- [Quickstart](https://docs.opencart.com/getting-started/quickstart.md): Quick setup guide for OpenCart 4
- [Upgrade from 3.x to 4.x](https://docs.opencart.com/getting-started/upgrade-from-3.x-to-4.x.md): Guide to upgrade from OpenCart 3.x to 4.x