Nano Banana watermark remover: take the star off your image, free
Drop your Nano Banana image in the box below and download it without the star.
Clipwipe is a free Nano Banana watermark remover. It takes the visible star, Gemini’s four-pointed mark, off the corner of an image made with Nano Banana, Nano Banana 2 or Nano Banana Pro, and gives you a clean PNG at the original resolution. There is no signup and nothing to install, and the image is cleaned in your browser tab, so it isn’t uploaded.
What the Nano Banana watermark is
Nano Banana is Google’s name for its Gemini image models: Nano Banana is Gemini 2.5 Flash Image, Nano Banana 2 is Gemini 3.1 Flash Image and Nano Banana Pro is Gemini 3 Pro Image. The watermark is the small four-pointed star in the bottom-right corner of the picture. Because the star is blended onto the image at a known opacity, Clipwipe can work backwards and calculate the pixels under it on an unedited export, instead of painting over them. A JPG or WebP file has been compressed, so its result may not match the original exactly. How Clipwipe works has the maths.
This page is about images. For a clip, use the Gemini video steps.
How to remove the Nano Banana watermark
- Find the file you downloaded from Gemini, Google Flow or Gemini Notebook, not a screenshot or a resized copy.
- Drop it on the box at the top of this page. On a phone, tap the box and pick the file.
- Wait for the star to clear. If the image isn’t an unedited export, Clipwipe says no watermark was found rather than guessing.
- Save the PNG, then crop, resize or compress it however you need.
Where the Nano Banana star appears, by Google product
Whether an image has the star depends on the Google product you made it in and on your settings. Here is what each one does.
| Where you made it | Is the star on the image? | Source |
|---|---|---|
| Gemini app and gemini.google.com | Yes, unless a Media Watermark setting has been turned off. Not every plan has that setting. | Gemini Apps Help |
| Google Flow | Yes, unless the Visible watermarking toggle under your profile picture is off. Not every plan can use it. | Google Flow Help |
| Gemini Notebook | It depends on the plan: some always carry the star and some have a toggle. | Gemini Notebook Help |
| Google AI Studio and the Gemini API | Unclear, and reports differ. Google’s watermark help page doesn’t cover them. One developer writes that API images have no visible mark. On Google’s AI developer forum, one user says the star shows on AI Studio images until you link a paid API key, and another says it stayed with a paid key. | Developer blog, May 2026; forum thread, January to April 2026 |
Which plans can switch the star off, country by country, is in the watermark dataset. A switch only changes what you generate next, so an image you have already saved keeps its star. If your file has no star, Clipwipe says no watermark was found and saves the image as a PNG with its pixels unchanged.
How big the star is at each Nano Banana image size
The star is 48 or 96 pixels across at these sizes, and it doesn’t grow in step with the image: it is 4.7% of the width on a 1024 × 1024 image and 1.7% on a 5504 × 3072 one.
| Model | Size | Image (pixels) | Star (pixels) | Set in from right and bottom (pixels) | Share of image width |
|---|---|---|---|---|---|
| Nano Banana 2 | 0.5K, square | 512 × 512 | 48 × 48 | 32 | 9.4% |
| Nano Banana 2 | 0.5K, 16:9 | 688 × 384 | 48 × 48 | 32 | 7% |
| All three models | 1K, square | 1024 × 1024 | 48 × 48 | 32 | 4.7% |
| Nano Banana | 1K, 16:9 | 1344 × 768 | 96 × 96 | 64 | 7.1% |
| Nano Banana | 1K, 9:16 | 768 × 1344 | 96 × 96 | 64 | 12.5% |
| Nano Banana 2 and Pro | 1K, 16:9 | 1376 × 768 | 48 × 48 | 32 | 3.5% |
| Nano Banana 2 and Pro | 1K, 9:16 | 768 × 1376 | 48 × 48 | 32 | 6.3% |
| Nano Banana 2 and Pro | 2K, square | 2048 × 2048 | 96 × 96 | 64 | 4.7% |
| Nano Banana 2 and Pro | 2K, 16:9 | 2752 × 1536 | 96 × 96 | 64 | 3.5% |
| Nano Banana 2 and Pro | 2K, 9:16 | 1536 × 2752 | 96 × 96 | 64 | 6.3% |
| Listed by the library | 16:9, wider margin | 2816 × 1536 | 96 × 96 | 192 | 3.4% |
| Nano Banana 2 and Pro | 4K, square | 4096 × 4096 | 96 × 96 | 64 | 2.3% |
| Nano Banana 2 and Pro | 4K, 16:9 | 5504 × 3072 | 96 × 96 | 64 | 1.7% |
Why to clean a Nano Banana image before you reuse it
Take the star off the file you downloaded first, then resize, crop, compress or post it. Each of those edits moves the pixels further from what Clipwipe knows about the star, so doing them first can leave you with a mark it can’t remove exactly.
- Resizing shrinks the star too. Scale a 5504 × 3072 image down to 1376 × 768 and its 96-pixel star becomes about 24 pixels, while the library expects 48 at that size. Clipwipe may find no match, and resizing has already mixed the star into the pixels around it.
- Cropping moves it. The star is measured in from the corner, so a crop puts it somewhere Clipwipe doesn’t expect, or cuts part of it off.
- Screenshots and recompressed copies change the pixel values. Calculating the original pixels needs the values the star left behind, and a screenshot or a JPG saved again no longer has them.
- Reference images can carry the star forward. A report on Google’s AI developer forum says Flow treated the star as an object in the picture when a starred image was used to make video, so it stayed, moved or warped across frames.
Only have an edited copy? Try it anyway: if Clipwipe can’t confirm the star, it leaves the pixels unchanged and saves them as a PNG. What each kind of edit does goes further.
Cleaning changes how the image looks, not what it is. Google’s invisible SynthID mark stays in the file, and if a platform asks you to label AI content, you still need to: see AI label rules by platform.
What Clipwipe handles
Watermark: the visible star on images from Nano Banana, Nano Banana 2 and Nano Banana Pro.
Files: PNG, JPG and WebP, with no set size limit: a large image needs enough free memory on your device.
You get: a PNG at the original resolution. Clipwipe edits nothing outside the mark.
Not handled: other logos or text on the image, and Google’s invisible SynthID.
Responsible use
Only use Clipwipe on images you own or have the rights to. Removing a visible watermark does not transfer ownership or usage rights, and the rules on AI labels differ by country.
Frequently asked questions
Does this work on Nano Banana 2 and Nano Banana Pro images?
Yes. The library Clipwipe uses lists image sizes for Nano Banana, Nano Banana 2 and Nano Banana Pro, and it looks for the star by the image’s size in pixels rather than by the model’s name.
Is the Nano Banana watermark remover free?
Yes. There is no account and no usage limit, and Clipwipe adds no watermark of its own to the clean image.
Is my Nano Banana image uploaded anywhere?
No. The image is read from your device and cleaned in your browser tab. The steps on the Gemini watermark remover page show how to check every request yourself.
Why does it say no watermark was found on my image?
Either the image has no star, or it is an edited copy such as a screenshot, a crop or a resized file. Go back to the file you downloaded and try that. When Clipwipe can’t confirm the star is there, it leaves the pixels unchanged and saves them as a PNG.
Can I stop Nano Banana adding the star in the first place?
On some plans. The Gemini app has a Media Watermark setting and Google Flow has a Visible watermarking toggle, but not every plan gets them, and they only affect images you generate after switching. An image you already have keeps its star.
Can a cleaned Nano Banana image still be identified as AI-generated?
Yes. Clipwipe takes off the visible star only. Google’s invisible SynthID mark stays in the file, so detectors can still identify the image as AI-generated.