Removing watermark…

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Unlimited watermark removals Works on any device, any browser All future updates included 100% private — images never leave your device
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Gemini Watermark Remover 3 uses left

Remove Gemini Watermarks
from Images & Video, Instantly

Upload any Gemini-generated image or Veo/Google Flow video. The visible sparkle watermark is removed using mathematically precise reverse alpha blending — 100% in your browser, nothing leaves your device.

No signup required Images & video supported 100% private — runs in your browser PNG, JPG, WebP, MP4, WebM Works on any device
3 free removals remaining

Drop your Gemini image here

Supports PNG, JPG, WebP  ·  Up to 50 MB  ·  or paste from clipboard

Original Processed
Note: This tool removes the visible Gemini sparkle watermark using reverse alpha blending with real Gemini reference alpha maps (max opacity ≈ 51%). The invisible SynthID watermark embedded in pixel frequencies cannot be removed without degrading image quality.
1

Drop Your Image

Drag and drop any Google Gemini-generated image onto the upload area, or click Choose Image to browse. You can also paste directly from your clipboard.

2

Preview the Result

The watermark is removed instantly. Drag the slider left and right to compare the original and cleaned image side by side before saving.

3

Download & Done

Happy with the result? Click Download PNG or JPEG to save your clean, watermark-free image. That's it — no account needed.

How it works

1. Detect Position

Scans the bottom-right corner with both 48×48 and 96×96 masks at pixel-accurate 1 px steps. The position scoring compares sparkle-core brightness against surrounding background pixels — robust to dark or bright images.

2. Reverse Alpha Blending

Uses the real Gemini alpha maps from open-source reference PNGs. For each sparkle pixel: original = (px − α) × 255 / (255 − α)

3. 100% Private

All processing happens entirely inside your browser using the Canvas API. Your images are never uploaded to any server — complete privacy guaranteed.

Frequently Asked Questions

Simply upload your Gemini-generated image to this tool. It automatically detects and removes the sparkle watermark using reverse alpha blending — all inside your browser. No signup or installation required.

Yes — you get 3 free image removals and 1 free video removal with no account required. After that, unlock 1 more video for $1.99, or get unlimited lifetime access to both images and video for a one-time payment of $9.99.

Yes. Switch to the Video tab above the upload area. Video runs through a local AI engine — the same reverse alpha blending detection used for images, plus a neural (FDnCNN) denoiser that cleans up the compression artifacts a simple formula can't undo — so the sparkle watermark added by Veo and Google Flow is removed while keeping the original resolution, frame rate, and audio intact, all processed locally in your browser.

MP4 (H.264) and WebM are fully supported, with MOV also accepted. Videos are capped at roughly 200MB and a few minutes in length, since processing happens entirely in your browser's memory. Video processing requires a recent desktop Chrome, Edge, or Safari (needs WebCodecs). It isn't built for mobile — it runs real AI inference and video encoding locally, so phones will likely run out of memory or crash mid-process.

Only the watermark corner is mathematically corrected — the rest of the frame is untouched, and audio is copied through without re-encoding. Video is re-encoded at high quality during export, so quality loss is minimal and generally not visible.

Your images never leave your device. All processing happens entirely inside your browser using the Canvas API. Nothing is uploaded to any server — complete privacy guaranteed.

Google Gemini adds a semi-transparent sparkle symbol to all AI-generated images. This watermark is composited using alpha blending at up to 51% opacity. Our tool reverses this blending mathematically to recover the original pixels.

No — this tool removes the visible sparkle watermark only. The invisible SynthID watermark embedded in pixel frequencies cannot be removed without degrading image quality.

PNG, JPG, and WebP are all supported, up to 50 MB in size. You can download the processed image as PNG or JPEG.

Yes, as long as your image has the sparkle/star mark in the corner. "Nano Banana" is the community nickname for Gemini's image generation model, and images generated in the Gemini app, via Google AI Studio, or through the Gemini API all carry the same visible sparkle watermark this tool removes. Imagen is a separate Google model family — if your image doesn't show the sparkle mark, there's nothing for this tool to detect or remove.

Yes — people describe it differently (star overlay, sparkle icon, sparkle stamp, Gemini logo), but it's the same semi-transparent four-point sparkle Google composites onto every Gemini-generated image and Veo/Google Flow video. Whatever you call it, if you see it in the corner of your file, this tool is built to remove it.

You get 3 free image removals and 1 free video removal before you pay anything — no account needed. Beyond that, we charge a one-time fee instead of a subscription: lifetime image access or a lifetime bundle covering both images and video. Many "free" watermark removers are ad-supported, capped, or bill you monthly under the hood. We'd rather charge once, clearly, and never bill you again.