SynthID remover
This tool does not remove or detect the SynthID pixel watermark. It is a standard metadata remover that can clear the C2PA Content Credentials and other container blocks from an image.
What this looks for
Add a PNG, JPEG or WebP and recognised removable blocks are listed here by name and byte count, before anything is removed. It looks for EXIF, XMP, IPTC and Photoshop resource blocks, free-text comments, modification timestamps, and C2PA Content Credentials. Colour profiles are preserved to retain colour interpretation. Removing EXIF orientation can change how a photo is displayed; check the downloaded image.
A watermark encoded into the pixels themselves, such as SynthID, is a different mechanism and is not something this or any metadata tool can remove.
Drag images in, paste, or click to choose
A whole folder works too · Ctrl/Cmd+V pastes · on phone this opens your file picker · up to 60 MB per file
PNG, JPEG and WebP only. A photo straight off an iPhone is usually HEIC, which this does not read yet — share it, AirDrop it, or export it as JPEG first and the file picker will take it from there.
What this tool actually removes
Google embeds SynthID directly into the pixel values of an image. Because it is encoded into the image stream itself, no metadata remover can reach or delete it. This tool operates entirely at the container level. If an image from Gemini or Imagen carries a C2PA manifest, EXIF, or XMP data, this tool finds those labelled blocks and removes them. The encoded image stream is copied over exactly as it arrived, meaning the pixel-level watermark remains completely untouched.
Limitations of metadata removal for SynthID
- It does not remove the SynthID pixel watermark. Stripping the metadata container has no effect on signals encoded into the image content.
- It does not detect SynthID. Finding or removing a C2PA manifest does not confirm the presence or absence of a pixel watermark.
- It does not verify the origin of the image. The tool identifies standard metadata blocks but does not cryptographically validate the manifest.
- Only PNG, JPEG and WebP files up to 60 MB are supported. All supported removable metadata blocks are cleared together; colour profiles remain. Removing EXIF orientation may change displayed rotation.
Questions about SynthID and metadata
Can this tool make a SynthID watermark undetectable?
No. The SynthID watermark lives in the pixel data, which this tool does not modify. Removing the C2PA container block does not affect pixel-level detection.
Why use a metadata remover on a generated image?
An image might carry a C2PA provenance record, EXIF timestamps, or XMP tags. If you want to clear these readable container blocks before publishing or sharing a file, this tool handles that removal locally.
Is the image sent to a server for detection?
No. The file content is analyzed locally in your browser tab. The tool reads the container structure to find and drop metadata blocks without uploading your file or checking external services.
Does clearing the metadata affect the image quality?
The encoded image stream is copied without re-encoding. Colour profiles are kept, but removing EXIF orientation may change how a photo is rotated on screen. Check the downloaded copy before sharing it.
