Remove This Application Was Created By A Google Apps Script User ((better)) -

: Use an tag on your own domain or a platform like GitHub Pages .

Google Apps Script is a powerful, accessible platform for building web applications. Because anyone can create a script for free, bad actors historically used it to build malicious pages that mimicked Google login screens. To protect everyday users, Google implemented this permanent footer.

Steps taken (brief, numbered): list exact actions so others can reproduce. Example: : Use an tag on your own domain

How to Remove "This Application Was Created by a Google Apps Script User" Warning

You cannot use internal JavaScript, CSS injection ( !important ), or Google Apps Script configuration properties to natively force the removal of the user disclaimer. Google explicitly prevents the script's HtmlOutput from accessing or modifying the outer parent frame holding the warning. To protect everyday users, Google implemented this permanent

By decoupling your user interface from Google’s domain, you gain 100% control over your CSS, layout, and branding, completely bypassing any default Google layout wrappers.

Add the your script uses (e.g., https://googleapis.com ). Phase 3: Verification (The Critical Step) when it matters

The banner is a deliberate platform security feature rather than an accidental technical limitation.

When you publish or deploy a Google Apps Script web app or add-on, users sometimes see the banner or message “This application was created by a Google Apps Script user.” That line can feel impersonal, undermine trust, or simply look unpolished — especially for organizations or developers presenting a polished product. Below is a descriptive, engaging guide explaining why the message appears, when it matters, how to remove or replace it, and practical suggestions to present a professional interface.