The blue banner stating "This application was created by a Google Apps Script user" is a built-in security warning designed to protect users from unverified or potentially malicious scripts. While there is no official "one-click" button to disable it for free on public web apps, there are several effective workarounds to hide or bypass it. 1. Embed the Web App in an IFrame
Here is a guide on how to get a clean, professional look for your Google Apps Script projects. How to Remove the Google Apps Script Header The blue banner stating "This application was created
If you want a professional look without the banner, you can move your front-end away from script.google.com . Embed the Web App in an IFrame Here
If you’ve built a Google Apps Script project and shared it with others, you may have noticed an authorization screen that says: In some organizational settings, this can minimize the
Set this to "Anyone within [Your Domain]" rather than "Anyone" . In some organizational settings, this can minimize the severity of the warning banner. Summary of Options: Verification Free / Time Intensive Professional, public-facing apps . Browser Extension Private internal tools or personal dashboards . Separate Hosting Free (GitHub/Netlify) Developers who want a fully custom UI .
The message is designed to protect users from potentially unsafe apps.