# Launch Page

The Editor's Viewport is where you visually construct your application. From there, you can press the Launch button to open the Launch Page and actually _run_ your application.

[Image: Launch Button]

## Working with the Launch Page

When you activate the Launch Page, it will open in a new tab. It is perfectly valid to switch back and forth between the Editor and the Launch Page. However, if you have a large screen or even a multi-monitor setup, consider tearing off the Launch Page tab and placing it side by side with the Editor.

[Image: Launch Page Side by Side]

This can make it easier and quicker to switch between the two.

## Real-Time Updates

A key feature of the Launch Page is that it maintains a real-time connection (or live-link) to the Editor. This means that any change made in the Editor will be immediately reflected in the Launch Page.

[Image: Launch Page Live Link]

And if any other users (with write permission) are present in the Editor with you, their edits can update your Launch Page as well.

:::ai
Give an AI assistant the steps and expected behavior for a reproducible bug. Through the **[Editor MCP Server](https://developer.playcanvas.com/user-manual/editor/mcp-server.md)**, it can replay the input and correlate logs, entity state, and captures before and after a fix.
:::

## Running on Other Devices

Sometimes it can be useful to run the Launch Page on another device. For example, you might wish to test your application on a mobile device. To do this, ensure you are logged in to your PlayCanvas account on that device. Then, simply visit the Launch Page URL in your device's browser.

:::tip

Chrome can dynamically generate a QR code for any page. From the Launch Page on your desktop, open Chrome's main menu and select `Save and share` > `Create QR Code`. Then, scan the QR code on your mobile device to instantly visit the Launch Page.

:::