AI images carry more than pixels. Stable Diffusion writes the prompt into the PNG. Some tools add an IPTC label saying the image was generated. Others embed a signed C2PA manifest that records the model, the app and every edit. This tool lists those claims, then removes the metadata — and is clear about what it cannot remove.
There is no single AI metadata standard. Five different mechanisms show up in practice, and a file can carry several at once.
| Field | Risk |
|---|---|
| C2PA manifest | medium |
| IPTC DigitalSourceType | medium |
| XMP CreatorTool | medium |
| EXIF Software | medium |
| PNG generation parameters | high |
| Comments and descriptions | low |
Stable Diffusion and ComfyUI write the full generation parameters into a PNG text chunk: prompt, negative prompt, seed, model hash. Prompts often include names, client briefs or private jokes. The image may be safe to post; the prompt may not be.
Some platforms read IPTC or C2PA labels and display a “made with AI” badge. That is useful when it is accurate and annoying when it is not — for example, when a photo edited with a generative fill tool gets labelled as fully synthetic.
C2PA is a signed manifest stored in the file. It can be removed. An invisible watermark such as SynthID is encoded into the pixels and is designed to survive editing. No metadata tool can remove it, and any tool that claims to is guessing.
Most AI tools never write C2PA in the first place, and every social platform re-encodes uploads. A clean file tells you the metadata is gone, not that the image is real or fake.
Drop an image or video into the box above. It stays on your device.
Read the report. It separates signed provenance (C2PA), labels (IPTC/XMP/EXIF) and embedded prompts.
Download the cleaned file, or inspect the original again before deciding.
A C2PA manifest, an IPTC label and a PNG text chunk are all data stored next to the pixels — removable, and often already removed by the platform. An invisible watermark is embedded in the pixels themselves. If a file was marked with SynthID or a similar system, stripping metadata will not remove that mark. We would rather say this plainly than sell you a false guarantee.
If the label is stored as metadata — C2PA, IPTC, XMP or a PNG text chunk — yes. If the platform applied the label on its own side, the file never carried it, and removing metadata will not change what the platform shows.
Yes. Stable Diffusion writes the prompt into a PNG tEXt chunk named “parameters”. That chunk is removed, and the report shows you the prompt before it goes.
No. It removes one signed claim from that copy of the file. Platforms, watermarks, file hashes and the original upload may still identify it. Treat this as metadata hygiene, not anonymity.
No. The pixel data and colour profile are copied unchanged. Only metadata chunks and segments are removed.
Signature verification is coming in a separate verify tool. The current report tells you whether a manifest is present and lists the metadata around it.