🎨 Gemini Watermark Remover
Remove watermarks from Gemini AI images - 100% client-side, no uploads
Drop your Gemini images here
Click to browse or drag and drop your image(s)
Original Image
Watermark Removed
What is Gemini Watermark Remover?
Gemini Watermark Remover is a free, client-side tool that removes watermarks from Google Gemini AI-generated images using mathematical precision. Unlike AI-based inpainting tools that "guess" what should be under the watermark, this tool uses Reverse Alpha Blending - a mathematically precise algorithm that reconstructs the original pixels with zero loss.
The tool works entirely in your browser, meaning your images never leave your device. This ensures complete privacy and security while processing your Gemini AI images. Whether you have one image or multiple images to process, our tool handles both single and batch processing efficiently.
How to Remove Gemini Watermark
- Upload Your Image: Click the upload area or drag and drop your Gemini-generated image(s). Supports JPG, PNG, and WebP formats.
- Automatic Detection: The tool automatically detects the watermark size (48×48 or 96×96 pixels) based on your image dimensions.
- Processing: The reverse alpha blending algorithm removes the watermark mathematically, restoring original pixels.
- Preview Results: View the original and processed images side-by-side to verify quality.
- Download: Click the download button to save your watermark-free image.
How It Works: The Science Behind Watermark Removal
The Gemini Watermarking Process
Google Gemini applies watermarks using standard alpha compositing (blending):
watermarked = α × logo + (1 - α) × original
Where α (alpha) is the transparency value, logo is the watermark color (white = 255), and original is the pixel we want to recover.
The Reverse Solution
To remove the watermark, we solve for the original pixel value:
original = (watermarked - α × logo) / (1 - α)
By analyzing the watermark pattern, we reconstruct the exact alpha map and apply the inverse formula to restore the original pixels with zero loss.
Detection Rules
| Image Condition | Watermark Size | Position |
|---|---|---|
| Width > 1024 AND Height > 1024 | 96×96 pixels | 64px from right, 64px from bottom |
| Otherwise | 48×48 pixels | 32px from right, 32px from bottom |
Frequently Asked Questions
Is this tool safe to use?
Yes! The tool runs 100% in your browser. Your images are never uploaded to any server, ensuring complete privacy and security.
Does it remove invisible watermarks?
No. This tool only removes the visible watermark overlay. Google's SynthID invisible watermarks remain embedded in the image.
What image formats are supported?
The tool supports JPG, PNG, and WebP formats. Maximum file size is 20MB per image.
Can I process multiple images at once?
Yes! You can select multiple images and process them in batch. The tool will automatically process all images.
Will the image quality be affected?
No. The tool uses mathematical precision (reverse alpha blending) to restore the original pixels with zero loss in quality.