Images generated by Google Gemini arrive with a small sparkle mark in the bottom-right corner. It is a visible watermark — pixels composited onto the finished picture — which is why it can be removed cleanly, and why removing it is a different job from the invisible marking Google also applies.
The placement is not approximate. For images up to 1024 px the mark is 48 px square, inset 32 px from the right and bottom edges; above 1024 px on both sides it doubles to 96 px square, inset 64 px. It is white, composited at partial alpha with a soft per-pixel falloff that peaks near 0.51 — never a solid stamp, which is why the picture still reads underneath it.
How to remove a Gemini watermark
- Open the watermark remover. Nothing installs and nothing uploads.
- Drop your image in. JPG, PNG and WebP all work, at any resolution.
- The mark is detected automatically in the corner it normally occupies.
- If anything remains, use the patch tool: draw around it and drag onto clean pixels.
- Download as PNG.
The whole thing happens on your own machine. Your image is never sent to a server, which matters more than it sounds for work you have not published yet.
Why the Gemini mark comes off cleanly
A corner watermark is applied last, in the same position, at the same opacity, every time. That regularity is exploitable: because the exact geometry and the exact alpha of each pixel are known, the blend can be run backwards rather than painted over. The tool holds a calibrated alpha map of the mark, so it can work out how much of each pixel is watermark and how much is photograph, and subtract precisely that much.
On the backgrounds Gemini images usually have in that corner — sky, blurred depth of field, flat colour, gradient — the reconstruction is effectively exact. Over fine detail it is a plausible guess instead, which is when you reach for the patch tool.
What it does not do
Removing the visible sparkle does not remove SynthID, Google's invisible watermark. That is not a logo in a corner; it is a statistical pattern spread through the entire image, and no visible-watermark tool touches it. If your goal is for an AI image to stop being identifiable as AI-generated, this is not that tool, and honestly nothing reliably is — platforms also classify images from the pixels themselves.
It also grants you no rights you did not already have. Removing a mark from an image you generated yourself is ordinary housekeeping. Removing one from someone else's work is not — see when you should not remove a watermark.
Batch and variants
Multiple images can be processed in one go, and the tool handles the sparkle logo, corner text marks and the variants that appear across different Gemini output sizes. Because everything runs locally, a batch is limited by your machine's memory rather than by an upload quota.
Is it free?
Yes — no account, no watermark on the output, no export limit. The site is funded by advertising on the pages around the tool, which is why there are no upload caps to sell you out of.