To remove the "This application was created by a Google Apps Script user" banner, you must transition from a personal script to a with an OAuth consent screen that has been verified by Google . Phase 1: Create a Standard Google Cloud Project
Note: the specific UI and flow can change, but the core options remain consistent. To remove the "This application was created by
: You cannot hide the banner by adding CSS like display: none directly to your Apps Script HTML file. Google hosts the banner in a parent frame with a different origin, and browser security policies ( Same-Origin Policy ) prevent your script from interacting with or hiding elements in that parent frame. Google hosts the banner in a parent frame
| Situation | Can you remove the line? | |-----------|----------------------------| | Unverified external app | ❌ No | | Internal Workspace app | ⚠️ Changes to domain name | | Verified public app | ✅ Yes (replaced with your name) | including the banner itself.
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) to prevent your code from accessing the parent page's elements, including the banner itself. Summary Table: Removal Options Difficulty iFrame Embedding Hides banner on the host site Google Sites Often suppresses banner for viewers Workspace (Internal) No banner for users in your domain GCP Verification Removes banner for public users linking to a GCP project Google Apps Script remove warning banner - Stack Overflow
This only works if every user is in the same Google Workspace domain as the developer. External users will still see the full warning.