Tools · Watermark

Lose the sparkle in the corner.

Gemini stamps a small mark on the pictures it makes. This finds it, cuts it out, and fills the hole from the pixels around it, following the lines running underneath rather than smudging them flat. Brush over anything else you want gone.

Drop the picture with the watermark

It opens here and stays here. Nothing is uploaded, which matters rather a lot if the image is not published yet.

Choose a picture

or drag it here, or paste

The invisible watermark stays. Google embeds SynthID in the pixels of everything Gemini generates, and it survives cropping, resizing, filters and re-encoding. Removing the sparkle in the corner does not touch it, and no tool that runs in a browser could. The picture is still detectable as generated, which is how it should be: provenance that depends on a logo you can paint over was never really provenance.

So what is this for? The corner glyph is a badge on your own work: it lands in the middle of a layout, clashes with a design, or covers the part of the frame you wanted. Take it off pictures you made or have the right to edit. Passing generated work off as a photograph is a lie the missing sparkle will not save you from.

Nothing is uploaded. The file is decoded in this tab and the fill runs on your own processor. There is no queue, no account, no copy of your picture on a server, and no watermark of ours on the way out.

It fills, it does not invent. The repair copies from around the hole and follows the lines running into it, which is right for a glyph, a logo or a timestamp. Brush out something large, or something sitting on fine texture, and the middle comes back smooth, because there is nowhere to get the texture from. When that shows, the crop is often the better trade.

Finding it is the unreliable half.On a plain or graphic background the mark is found on the first try. On a photograph busy enough to hide it, a faint star and a patch of leaves measure almost the same, so the tool says it found nothing rather than guessing and repainting the wrong part of your picture. Brush over it yourself and the removal is identical. Saving as PNG also drops the file’s metadata; if that is what you came for, the metadata tool does it without re-encoding.