Share the image. Keep the workflow private.

Check whether your PNG contains a prompt

Inspect the actual file. When text metadata is present, the tool shows the PNG chunk type and its keyword, such as parameters, prompt or workflow. Different exporters can write different fields; the presence of a particular application name is not required for cleaning.

The inspector deliberately avoids displaying full private values. It does not expand compressed text or reconstruct a ComfyUI graph. The cleaner removes supported text chunks as complete blocks, whether their contents are plain or compressed.

Remove PNG metadata without redrawing

The cleaner removes tEXt, iTXt and zTXt chunks along with supported credential and other non-display ancillary metadata. It preserves image data, transparency, color information and supported animation chunks. The resulting PNG stays a PNG.

Because all text chunks are removed, descriptive titles and copyright text in those chunks are removed too. This is useful for sharing a copy without the embedded workflow, but the original remains the right file to archive for reproducibility.

Keep a reusable master copy

1. Save the original PNG and your separate workflow JSON if you use one.
2. Inspect a copy and review the named text fields.
3. Clean and download the output. Check the post-cleaning inspection and matching media hashes.
4. Share the cleaned file only where you have the right to share the image, with appropriate AI disclosure.

Common questions