alici.ai
alici.ai

Free Nano Banana 2 Watermark Remover

Remove watermarks from Gemini AI-generated images instantly. Uses mathematical reverse alpha blending for lossless restoration. For educational purposes only.

HOW IT WORKS

  1. Upload a Gemini AI-generated image.
  2. The tool detects the watermark position automatically.
  3. Click Remove Watermark to process the image locally.
  4. Download the cleaned PNG result.

USE CASES

  • Learning about alpha blending algorithms.
  • Understanding how AI watermarks work technically.
  • Educational research on image processing.
  • Studying reverse engineering techniques.

ABOUT THIS TOOL

This Gemini watermark remover tool is provided for educational purposes only. It demonstrates the mathematical concept of reverse alpha blending, showing how Gemini AI watermarks applied through alpha compositing can be theoretically reversed.

The algorithm is based on the open-source Gemini Watermark Remover project by journey-ad, itself a JavaScript port of the original Gemini Watermark Tool by Allen Kuo. All processing happens in your browser and nothing is uploaded.

Disclaimer: this tool is provided as-is without warranty of any kind. Users are solely responsible for ensuring their use complies with applicable laws, terms of service, and intellectual property rights.

FAQ

Does this work on all AI watermarks?
No. This tool is specifically designed for Gemini AI watermarks only. Other AI services use different watermarking techniques.
Is there any quality loss?
No. The algorithm mathematically reverses the Gemini watermark blending, restoring the original pixels losslessly.
Is my image uploaded anywhere?
No. All processing happens in your browser. Your Gemini images never leave your device.
Why does it fail on some images?
The image must be directly from Gemini AI without edits. Cropping, resizing, filters, or re-saving can break the watermark pattern.
What is this tool for?
It is an educational demonstration of mathematical image processing concepts. You are responsible for your own usage.