If you want to completely strip the banner, you cannot host the app on Google’s servers directly. Instead, you can use a "proxy" or a middle-man server.
By understanding these limitations, you can better plan your project's user experience from the start.
Google Apps Script is designed for quick internal tools. For client-facing applications, developers often migrate their logic to or Firebase Hosting . If you want to completely strip the banner,
If you have ever built a web app using Google Apps Script (GAS), you have likely encountered the persistent gray banner at the top of the page that reads:
The most common way to "mask" the Apps Script environment is to embed your Google Apps Script URL into your own personal or business website. Google Apps Script is designed for quick internal tools
Requires significant coding knowledge; may violate Google’s Terms of Service regarding masking the origin of the script.
In the Apps Script editor, click Deploy > New Deployment . Select Web App and set "Who has access" to Anyone . Copy the Web App URL: It will look like https://google.com . Requires significant coding knowledge
Use the following HTML code on your own website:
Use code with caution.
The short answer is . There is no "off switch" in the Google Apps Script settings to hide this banner.