Gemini Watermark Remover

Drop in a Gemini image and take the visible watermark off it. The work happens in this tab.

All processing happens in your browser. Your file is never uploaded to any server.

Drop a Gemini image here or tap to choose a file · PNG, JPEG or WebP

What this Gemini watermark remover handles

It reads PNG, JPEG and WebP images, one image at a time, up to 60 megapixels. That pixel count is the only size limit — there is no file-size cap. A bigger image is refused with a message asking you to export a smaller copy. The cleaning runs in the tab you already have open: your own browser reads the file, and it is never uploaded to a server. There is no account, no sign-up, no login and no payment — the page has no price anywhere on it. The cleaned picture comes back as a PNG or a JPEG, written and saved by your browser.

What it removes is the visible Gemini watermark — the white sparkle logo in the corner of a generated image. It does not remove SynthID, the invisible pattern Google embeds in the pixels, and it does not alter anything else in the picture.

How the removal is calculated

Gemini stamps its logo on with ordinary alpha compositing, so this page solves that same equation backwards. If watermarked = alpha × logo + (1 − alpha) × original, then original = (watermarked − alpha × logo) / (1 − alpha). The logo is white, so logo = 255, and alpha is read from four stored captures of the real watermark over a black background. No AI inpainting is involved, and nothing outside the watermark box is rewritten — every other pixel is copied straight from your original file.

Two watermark templates are built in, because Gemini has used two geometries: Current (a 36 px or 96 px logo, at margins that scale with the image from roughly 192 px) and Legacy (a 48 px logo at a 32 px margin, or 96 px at 64 px). Auto-detect scores both against your image and keeps whichever lines up better; you can also pin either one by hand. Everything below re-renders live as you move it: the template, the logo size (16–160 px), the right and bottom margins (0–400 px), the watermark strength (0–150%, scaling the built-in watermark opacity), the noise threshold (0.000–0.040 — pixels below it are left untouched), the loupe zoom (2–10×) and the JPEG quality (60–100). You can also drag the box directly on the preview, or press Auto-align to let the correlation search settle the position.