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Remove the Gemini Watermark

Also removes the Nano Banana logo and star overlay. Free. No sign up. No email. No ads. Your images never leave your browser.

Image with Gemini watermark in the bottom-right corner
Before
Same image after the Gemini watermark has been removed
After

How it works

  1. Step 1
    Drop your images.

    PNG, JPG, or WebP. Single or batch.

  2. Step 2
    Math runs locally.

    Reverse alpha blending reconstructs the pixels under the Gemini diamond watermark. The image data never leaves your browser.

  3. Step 3
    Download.

    Individual files or a ZIP. Done in under a second per image on most devices.

Built on the open-source journey-ad/gemini-watermark-remover algorithm (MIT). Same technique used by every other free tool in this space. We just put it where your Opalite workflow already lives.

FAQ

Is this really free?
Yes. No sign up, no email, no ads. Process as many images as you want.
Does my image leave my device?
No. The math runs entirely in your browser. We never see your images.
What is the Nano Banana watermark and does this remove it?
Nano Banana is the popular nickname for the Google Imagen model that powers Gemini image generation. The watermark this tool removes is the same diamond sparkle logo placed on every Imagen and Gemini image, so yes, this is the Nano Banana watermark remover.
What kind of watermark does this remove?
The Gemini diamond sparkle logo applied to AI-generated images from Google Gemini and Imagen, also called Nano Banana. Both 48px and 96px variants are auto-detected based on image size.
Can I process multiple images at once?
Yes. Drop up to 50 images at once and download them individually or as a single ZIP.
Why does Opalite offer this for free?
The reverse-alpha-blending math is free to run and we already built it for our main product. Sharing it here costs us nothing and helps people who land on this page learn about the rest of what Opalite does.
Does it work on Imagen, Gemini Veo, or just Gemini?
It works on any still image carrying the standard Gemini or Imagen diamond watermark, including images from the Nano Banana model. Video watermark removal (Gemini Veo) is not supported in this free tool because the technique is image-only.
What other watermarks can Opalite remove?
The full Opalite app handles ChatGPT, Grok, and Sora watermark removal in addition to Gemini. Those flows live inside the Opalite product because they use AI inpainting that has a per-use cost. Create a free Opalite account to try them.