Google frequently updates the class names of their automatically injected wrappers to prevent developers from hiding the banner. If the banner suddenly reappears in the future, you will need to inspect the live web app page using your browser's Developer Tools (F12), find the new class name of the banner element, and update your CSS accordingly.
The warning appears because your app is . To remove it for all users, you must complete Google’s verification process. And yes, this can be done for free if you meet the requirements.
The banner "This application was created by a Google Apps Script user" is a mandatory security feature for scripts running on free consumer accounts. While there is no "off" switch in the settings, several workarounds can effectively hide or remove it for your users. ⚡ Quick Solutions (Free) 1. Embed as an iFrame Google frequently updates the class names of their
If you're a developer creating Apps Script projects, you can minimize the chance of warnings by carefully managing your OAuth scopes.
The negative top margin shifts the entire Google frame upward by 45 pixels, effectively hiding the top banner behind the boundary of your website wrapper. The overflow: hidden property ensures the hidden banner cannot be scrolled back into view. Method 3: Reverse Proxy Using Cloudflare Workers To remove it for all users, you must
This completely eliminates the warning message because Google trusts internal organizational scripts. Note that if you change this setting to "Anyone" (making it public to personal @gmail.com users), the banner will return.
If you encounter a website, extension, or bot that displays the message "Remove this application was created by a Google Apps Script user free," you should proceed with extreme caution. While there is no "off" switch in the
This clever method uses a parent HTML page to embed your Apps Script web app in an IFrame, which effectively hides the warning banner. This technique was detailed by a developer named paxtech on Qiita.
While this does not technically delete the banner, it allows you to control the user experience by masking the top portion of the iframe or forcing users to interact with your brand's domain name instead of a long ://google.com URL.