Gemini Watermark Remover
FeedbackRemove Gemini AI / Nano Banana watermarks with Alpha Blending or LaMa AI inpainting
Removal Method
How It Works
Quick Method (Alpha Blending)
- • Uses Reverse Alpha Blending algorithm for lossless watermark removal
- • Automatically detects watermark size (48×48 or 96×96) based on image dimensions
- • Mathematical precision - not AI guessing, perfect pixel restoration
- • Instant processing, no model download required
- • For best results, use the original image from Gemini. Thumbnails or resized images may not work perfectly.
AI Method (LaMa Inpainting)
- • Uses LaMa (Large Mask Inpainting) neural network model
- • AI reconstructs the area under the watermark based on surrounding context
- • Better for complex backgrounds or when alpha blending leaves visible artifacts
- • Requires one-time ~200MB model download (cached in browser)
- • Supports WebGPU acceleration when available
General
- • 100% client-side processing - your images never leave your browser
- • Supports batch processing with ZIP download
Disclaimer
- • This tool only removes visible Gemini watermarks (the semi-transparent logo in bottom-right)
- • Does not remove invisible/steganographic watermarks (SynthID)
- • Designed for Gemini's current watermark pattern (as of 2025)
- • Use responsibly and respect intellectual property rights
About Gemini Watermark Remover
A powerful tool for removing Gemini AI (Nano Banana) watermarks from generated images. Supports two methods: (1) Quick Alpha Blending - mathematically precise reverse alpha blending for instant, lossless pixel restoration; (2) LaMa AI - neural network inpainting for complex backgrounds. Features automatic watermark detection (48×48 or 96×96), before/after comparison, batch processing with ZIP download, and WebGPU acceleration. 100% client-side - your images never leave your browser.
Frequently Asked Questions
What watermark types does this tool target?
It is designed for visible Gemini AI / Nano Banana-style watermarks in generated images, including common 48x48 and 96x96 placements.
When should I use Alpha Blending vs LaMa inpainting?
Use Alpha Blending for simple, predictable watermark overlays. Use LaMa inpainting when the watermark covers complex backgrounds or the original pixels need to be reconstructed.
Does watermark removal happen locally?
Yes. The workflow is client-side, so images are processed in your browser instead of being uploaded to a remote server.
Try Our Browser Extension
Access essential tools instantly from your browser sidebar. Encode, decode, format, and hash - all without leaving your workflow.