![Sofia Emelianova](https://web.dev/images/authors/sofiayem.jpg) Sofia Emelianova [GitHub](https://github.com/sofiayem)

<br />

With DevTools, you can test how your website behaves and performs on any device without having to browse it on real devices.

[Video](https://www.youtube.com/watch?v=f7kokNyRe7U)

Use the **Device Mode** to simulate a mobile viewport and configure it:

- Set the device dimensions in various ways or use the presets.
- Switch between landscape and portrait orientations.
- Debug the `@media` min- and max-width breakpoints.
- Choose a device to simulate or configure a custom one.
- Simulate your page's performance on mid-tier and low-end devices by throttling CPU and network speed.
- Enable offline mode to test your website's offline content, if any.

To learn more, see [Simulate mobile devices with Device Mode](https://developer.chrome.com/docs/devtools/device-mode.md.txt).