What does the Gemini Omni Watermark Remover do?

It removes the Gemini watermark from videos generated by Gemini Omni. Drop an mp4, the tool demuxes it, removes the watermark frame-by-frame, re-encodes the video track, copies the audio track verbatim, and gives you a clean mp4 to download.

Is my video uploaded anywhere?

No. The entire pipeline runs in your browser using the WebCodecs API. Your file is never sent to any server.

What formats are supported?

H.264 mp4 input up to 100 MB, with AAC audio. The audio track is copied bit-for-bit so audio quality and A/V sync are preserved exactly.

Why does it need Chrome 94+ desktop?

The tool uses VideoDecoder, VideoEncoder, and VideoFrame from the WebCodecs API. These are widely available on desktop Chromium-based browsers (Chrome, Edge, Brave) but not yet on most mobile browsers or Safari.

Video tool

Gemini Omni Watermark Remover

Drop a Gemini Omni mp4 and download a clean copy with the watermark removed. The whole pipeline — demux, frame-by-frame removal, re-encode, mux — runs locally in your browser.

Working inside Gemini? Try the one-click Chrome extension

Drop an mp4 here or click to select H.264 mp4, up to 100MB. One video at a time.

Processing

video.mp4

0 MB

Remove the Gemini watermark from Omni videos, free and in-browser

Google Gemini Omni adds a small Gemini logo in one corner of every frame it generates. This tool strips it — frame by frame — without uploading the video anywhere. Drop an mp4 above, wait while the encode runs, and download the cleaned file.

How it works

Demux — The mp4 is parsed locally (via MP4Box) into a video track of H.264 samples and an audio track.
Decode & clean — Each frame is decoded with the WebCodecs VideoDecoder, the watermark patch (48×48 px at margin 72 px from the bottom-right corner) is inverse-blended out using a pre-calibrated alpha map, and the cleaned frame is fed back through VideoEncoder.
Mux — The cleaned video samples and the original audio samples (passed through verbatim — never re-encoded) are remuxed into a new mp4.

What's not supported

Non-mp4 containers — webm/mov outputs from Gemini are not supported. Re-export as mp4 if you need to clean them here.
Codecs other than H.264 — HEVC and AV1 cannot be decoded by WebCodecs in most browsers yet.
Mobile and Safari — WebCodecs is not widely available outside desktop Chromium. The drop zone is greyed out if your browser doesn't support it.
Files over 100 MB — A safety limit; in-browser re-encoding of a much larger file would eat too much memory.
SynthID — Gemini Omni also embeds an invisible SynthID provenance signal in the pixel values themselves. This tool does not try to strip SynthID, only the visible logo.

Audio is preserved exactly

The audio track is never decoded. AAC samples are read from the input and appended directly to the output mp4. Quality, channel layout, sample rate, and A/V sync stay bit-identical to the original.

Privacy

Everything runs in your browser. No file leaves your device, no telemetry, no server. You can disconnect from the network after the page loads and the tool will still work.

Working inside Gemini?

If you'd rather click a button on gemini.google.com instead of re-uploading a saved file, the Gemini Watermark Remover Chrome extension adds a Download Clean Image button to the page. (Video integration on the page itself is on the roadmap, not yet shipped.)