Stable Diffusion, ComfyUI, and related tools write extensive metadata into generated images. This metadata—including model names, prompts, seeds, and workflow details—triggers AI labels when you upload to Instagram, Pinterest, Facebook, or TikTok. Here's a complete guide to stripping it.
What Stable Diffusion Embeds
Stable Diffusion outputs typically include:
- PNG text chunks — Parameters, prompt, negative prompt, seed, steps, CFG, model name
- XMP metadata — Adobe-style tags with generation info
- EXIF software tags — References to the software used
- Workflow data — ComfyUI embeds node graphs and settings in some exports
Platforms scan for these markers. When found, they apply the "Made with AI" or "AI Info" label.
PNG vs JPEG
- PNG — Stable Diffusion often uses PNG for lossless output. PNG supports text chunks (tEXt, iTXt) where most metadata lives. Stripping must remove these chunks, not just EXIF.
- JPEG — Metadata is usually in EXIF/XMP. Standard metadata removal handles this.
A good tool strips both PNG chunks and EXIF/XMP.
How to Strip Stable Diffusion Metadata
- Export your image from Stable Diffusion, ComfyUI, or your preferred interface
- Upload to a metadata removal tool — Ensure it handles PNG text chunks, not just EXIF
- Download the cleaned file
- Upload to your platform — The AI label should not appear
Processing in the browser keeps your images private; they never leave your device. No account required for the first few images per day.
What Gets Removed
- PNG text chunks — Parameters, prompt, seed, model name
- XMP tags — Generation metadata in Adobe format
- EXIF data — Software and device fields
- C2PA — If present (e.g., from certain upscalers or post-processing)
Quality and File Size
Metadata removal does not affect image quality. Pixels are unchanged. File size may decrease because metadata is removed.
Important Notes
- Some tools only strip EXIF; for Stable Diffusion PNGs, you need PNG chunk removal
- Pixel-level watermarks (e.g., SynthID) cannot be removed by metadata stripping
- Platform detection may evolve; results can vary
For a free tool that strips Stable Diffusion metadata including PNG chunks, use Remove AI Label—no account needed to start.