SynthID Remover
There is no "remove SynthID" button on this page, and that is the point. Metadata comes off and is verified. The pixel mark does not, and nobody can prove otherwise from a browser.
- EXIF, GPS, device tags
- Available: Available
- XMP and PNG text chunks
- Available: Available
- Content Credentials (C2PA)
- Available: Available
- Pixel watermarks
- Unavailable: Unavailable Not locally removable
- Verification
- Re-scan of the exported file
- Uploaded
- 0 bytes of your file
Two signals, one file, different outcomes
A Gemini or ChatGPT image can carry both a pixel watermark and a C2PA manifest. They are stored in completely different places. The manifest is a signed block of metadata sitting beside the picture. The pixel mark is inside the picture.
Removing the manifest is a normal metadata operation and DetectMark confirms it by re-scanning the exported file. Removing the pixel mark would mean degrading the image and still not knowing whether it worked, because the verification is Google's to run.
Why there is no button
A button implies a verdict. Shipping one would mean either lying about the outcome or reporting a success that nothing checked. Neither is worth the traffic.
The image export receipt splits its list in two for the same reason: what was removed and verified, and what was not removed, with the pixel note attached.
The one SynthID a browser can verify today
The one image whose SynthID a browser can verify today is an OpenAI-generated image, through OpenAI's own Verify tool and Content Provenance API. That check runs on the OpenAI image verifier page, and on the AI image watermark detector, after an explicit consent click. It covers OpenAI-supported signals only, and a not-detected result says nothing about images from other providers or about a file whose marks were stripped.
For text from Gemini
SynthID Text lives in word choice, exactly like Claude's mark. Character stripping does nothing to it. A full rewrite through a non-Google route replaces the word choices that carried it, which is a writing decision rather than a tool feature.
FAQ
No. Pixel-level SynthID survives screenshots, JPEG re-encoding, resizing and cropping. What can be removed is the C2PA metadata that often accompanies it, which is a separate signal.
Not by any tool that strips characters. SynthID Text lives in word choice. Only a full rewrite through a non-Google route drops the signal.
No. C2PA is a signed manifest in the file. SynthID Image is in the pixels. Removing one leaves the other exactly where it was.
In part. The image tool reads C2PA, EXIF, XMP and PNG text chunks and reports them. Reading the pixel mark requires Google's tools.
Because success could not be verified. A button that reports an outcome nothing checked is a lie with a progress bar.
Every check runs in your browser: how it works. The limits are written down too: what DetectMark cannot remove.