If you only want to remove the banner for yourself or a small team, you can use browser extensions to hide the CSS element of the banner.
The most common and effective way to hide the banner from your users is to embed your Google Apps Script (GAS) URL within another webpage using an tag.
: document.getElementById('warning').style.display = 'none'; . 5. Official Verification (Long-Term Solution) If you only want to remove the banner
If you don't want to manage external hosting, embedding the web app directly into a can often suppress the warning for users within your organization or those viewing the site. This is because Google considers its own ecosystem a "safe" container for the script. 3. Use a Google Workspace Account
: Tools like Custom JavaScript for Websites allow you to run a script that sets the banner's display to "none". Browser-Side Hiding (For Personal Use)
To remove all "Unverified App" warnings and the banner officially, you must link your script to a and complete the OAuth verification process. Is there any way to remove the banner? : r/GoogleAppsScript
: Use a basic iframe structure: .
: This removes the banner without any extra coding or embedding.
: Host a simple HTML file on a free platform like GitHub Pages or your own website. If you only want to remove the banner
: If you are using a standard @gmail.com account, you will still see the banner unless you use the iframe method mentioned above. 4. Browser-Side Hiding (For Personal Use)