Removing a different watermark
The tool above knows the Gemini watermark by heart. It can also learn a watermark it has never seen — any see-through logo that sits in the same spot on every picture, from any tool.
Add 3 or more pictures that share the same watermark (more is better — around 20 gives the sharpest result). Because the logo stays put while the pictures underneath differ, it can be told apart from your content and then removed the same exact way, restoring what was underneath rather than blurring it. As always, nothing is uploaded.
Clearing the sparkle from a whole clip
Video works the same way as a still image, just repeated: the watermark sits in the same corner in every frame, so each frame's corner is restored in turn and the clip is written back out with its audio intact.
Two things make video harder than a photo, and both are handled. Video is always compressed, which softens the logo's edge slightly, so an extra pass tidies that rim. And because compression makes each frame land a little differently, the corner can shimmer if frames are treated in isolation — so the correction is smoothed across neighbouring frames, keeping the repaired area steady while the scene behind it moves.
Gemini, Veo and Google Flow
Clips from Veo and from Google Flow carry the same corner mark as Gemini video, so they all go through the same path. If a clip does not carry the mark, it is returned untouched rather than altered on the off-chance.
Practical notes
- Expect roughly real time. A 30-second clip takes about half a minute; a desktop handles long 4K footage much better than a phone.
- Keep the tab in front while it runs, so the browser does not throttle the work.
- Clean first, edit second. Trim, grade and export after removal, not before.
- The download is WebM, which every modern editor and platform accepts.
How the removal works
Most watermark removers guess. They erase the area and ask an AI model to paint something plausible into the hole, which is why results so often look smeared, or invent detail that was never there. This tool does something different: it undoes the watermark instead of covering it up.
The sparkle is a semi-transparent layer blended over your picture, so every watermarked pixel is a fixed mix of two things — the logo, and whatever was underneath. Because the logo is identical in every Gemini file, that mix can be measured once and then reversed, pixel by pixel, to recover the original colour. The result is the detail that was actually behind the logo, not a plausible imitation of it.
Why that matters for quality
- Nothing outside the corner is touched. The rest of your image is passed through unchanged, so there is no global quality loss.
- No blur, no smearing. Textures, edges and text under the logo come back as they were.
- It refuses to guess. If the Gemini sparkle is not actually present, the file is returned exactly as you gave it, rather than having an odd bright patch stamped into the corner.
Files that were re-saved or re-compressed after watermarking — a JPEG export, a screenshot, or any video frame — no longer hold the exact original values, so a light extra pass tidies the logo's soft edge in those cases.
Video watermark questions
Which video formats work?
MP4, MOV and WebM, which covers Gemini, Veo and Google Flow downloads. The cleaned file is saved as WebM.
Is the audio kept?
Yes, audio is kept by default, and there is a checkbox to drop it if you would rather have silent footage.
How long does a video take?
Roughly the length of the clip, because each frame is handled in turn. A desktop is noticeably faster than a phone for long or high-resolution footage.
Does the corner flicker after removal?
No. The correction is smoothed across neighbouring frames, so the repaired area stays steady instead of shimmering as the scene moves.
Is the whole video re-encoded?
The video is re-saved to write the cleaned frames, so there is a normal re-encode. Clean the clip first and do your trimming and grading afterwards to avoid stacking up extra compression.