Use Banana Clean when Gemini, AI Studio or Flow leaves a visible mark on an image. Open the browser cleaner for a saved file, or install the extension and let it clean supported Gemini downloads when you click Download.
Two ways to clean a Gemini image
Saved file: open the manual cleanup page, load the image, brush over the visible mark and download the cleaned PNG.
New Gemini download: install the Chrome extension, refresh Gemini or AI Studio, then use the normal Download button.
When the automatic extension is better
If you generate many Gemini images, manual upload gets old fast. The extension watches the official download flow and cleans the file before it reaches your downloads folder. It is built for repeated work: Gemini, AI Studio, image format conversion, crop presets and OMNI Video access if your plan includes it.
When the manual cleaner is better
Manual cleanup helps when a mark has moved, a background is difficult, or you already have the watermarked file saved. You paint only the area you want gone. The local AI model rebuilds the selected patch in the browser, so the rest of the image stays untouched.
Images, videos and SynthID are separate
Gemini images usually have a small visible logo. Gemini and Google Flow videos can have a visible video mark. Google also uses SynthID, an invisible watermark. Banana Clean removes visible marks only. It does not claim to remove SynthID.
FAQ
Can I use it without installing the extension?
Yes. Use Manual Cleanup for saved PNG, JPEG or WebP files. The extension is for automatic cleaning during Gemini downloads.
Does this work for Nano Banana images?
Yes. Nano Banana and Gemini image downloads are part of the same visible watermark problem. See the dedicated Nano Banana page for that keyword path.
Can I remove a Gemini video watermark here?
Not on this image page. The Chrome extension has a separate OMNI Video cleanup workflow for supported Gemini and Google Flow MP4 downloads.
Is this a general watermark remover?
The manual cleaner can brush out logos, text, stamps and objects from many images. The automatic extension is tuned for Gemini and AI Studio downloads.