> For the complete documentation index, see [llms.txt](https://docs.rayon.design/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.rayon.design/other-resources/others/system-requirements.md).

# System requirements

Setup we recommend to use for Rayon

Rayon is online software.\
Although we provide [an installed app](https://www.rayon.design/download), it is common to use Rayon directly in the browser.

#### **Supported browsers**

Rayon supports mainstream browsers, down to a certain legacy version for each browser.\
Here is the cut-off for each one.

* **Chrome**: 119+
* **Opera**: 105+
* **Firefox**: 118+
* **Edge**: 119+

We recommend updating your browser to benefit from the best experience when using Rayon.

#### **Browsers not supported**

* **Safari**: unfortunately, Safari suffers from a known issue with apps like ours that use multithreading and WebAssembly. We cannot support Safari until this issue gets resolved.
* **Internet Explorer**

#### **Smartphones and tablets**

Rayon can be opened on smartphones and tablets in **read-only mode**, to browse through your models and take measurements. Drawing and editing remain available on desktop.\
More about it in [Rayon for mobile](/documentation/publishing-and-sharing/rayon-for-mobile.md).

#### Internet connection

Rayon requires an internet connection to start working. The app can only be loaded with an internet connection, whether in your browser or in the installed app. Once loaded, Rayon can be used offline. All that matters is that you are connected to the internet again before closing or refreshing the tab you are working on.

***

### We are always available

Book a demo with our team, [right here](https://b1kzip68v9f.typeform.com/to/Hgr0eQ4k#source=docs).\
To get some support, reach out to us through our **in-app support chat**.\
More about [our support policy right here](/other-resources/others/support-policy.md).