Local browser check · No sign-in · No credits

AI Image Metadata Checker: Find and Remove AI Generation Clues

Look for generation tools, prompts and workflow clues stored in your image. The checker reads the original file without changing the image.

Choose an image to check How it works
  • Your image stays on your deviceFiles are parsed in a background browser thread. Neither the image nor its filename is uploaded.
  • Reads embedded metadataChecks PNG text chunks, EXIF, XMP, JPEG comments and C2PA Content Credentials markers.
  • Shows the evidenceEvery clue comes with the original field text, so you can review it yourself.

PNG, JPEG or WebP, up to 10 MB. Use the original file: screenshots and re-saved images may lose metadata.

Your image, filename and results stay in this browser. Nothing is uploaded, no AI service is called and no check history is saved. Closing or refreshing the page clears the results.

Reading metadata in your browser…

How to check an image for AI metadata

Three steps. No sign-up and no credits needed.

  1. Pick the original file

    Choose or drop a PNG, JPEG or WebP file up to 10 MB. Files exported straight from the generator work best.

  2. Parsed locally in your browser

    A Web Worker reads the metadata in the file structure. Pixels are not decoded and no AI service is called.

  3. Review and remove if needed

    See the verdict and every extracted field, with AI clues marked in red. Remove the metadata losslessly in one click and download the cleaned image.

What metadata is read

The checker reads common text-based metadata stored inside the file. These are the supported locations and formats.

PNG text chunks

PNG

Reads tEXt, zTXt and iTXt chunks, where Stable Diffusion WebUI stores parameters and ComfyUI stores its prompt and workflow.

EXIF fields

PNG · JPEG · WebP

Reads Software, ImageDescription and UserComment.

XMP metadata

JPEG · WebP

Reads XMP text, including source markers such as the IPTC Digital Source Type.

JPEG comments

JPEG

Reads text in JPEG comment (COM) segments.

C2PA Content Credentials

PNG · JPEG · WebP

Detects whether a Content Credentials marker is embedded. Signatures are not verified.

Which AI clues are recognised

Generator names
ComfyUI, AUTOMATIC1111, Stable Diffusion, InvokeAI, NovelAI, DALL·E, Midjourney and Adobe Firefly.
Generation parameters
Stable Diffusion parameter text containing Steps plus Seed or Sampler, in PNG text or the EXIF user comment.
Workflow structures
ComfyUI node JSON (class_type, nodes) and InvokeAI-specific metadata fields.
AI source markers
The IPTC Digital Source Type trainedAlgorithmicMedia, meaning media created by a trained algorithm.

Understanding the results

Results describe the metadata in the file, not the picture itself.

AI-related metadata clues found

A supported field names a generator, contains generation parameters or carries an AI source marker, so a related tool wrote to the file. Metadata can be edited, so this is not final proof.

No supported AI metadata found

None of the fields that were read contain a known clue. The image may not be AI-generated, or its metadata may have been stripped by a platform, screenshot or re-save.

Incomplete check

The file structure was unusual, a field exceeded safety limits or the browser could not decompress it. Some data was not read, so no conclusion is given.

Limitations

  • Social networks, messaging apps, screenshots and format conversions usually strip metadata.
  • Anyone can edit, fake or remove metadata.
  • Image content is not analysed, and invisible watermarks such as SynthID are not detected.
  • C2PA signatures and certificates are not verified, and no external provenance records are looked up.
  • AVIF, HEIC and GIF files and extended XMP are not supported yet.
  • Removing metadata does not remove visible or invisible watermarks from the image.

Reads PNG text chunks, JPEG comments, common EXIF software / image description / user comment fields, and XMP in JPEG and WebP files. Looks for common generation tool names, Stable Diffusion parameters and ComfyUI workflow structures. Not all tools, private fields or extended XMP are supported.

Frequently asked questions

Can this tool tell whether an image is AI-generated?

Not with certainty. It only reads metadata clues stored in the file. A clue means a related tool wrote information to the file; finding nothing does not prove the image is not AI-generated.

Is my image uploaded to a server?

No. The check runs entirely in your browser. The image, filename and results are never sent to a server and are cleared when you refresh or close the page.

Why does an AI image downloaded from social media show nothing?

Most platforms compress uploads and strip their metadata, and screenshots or re-saves lose it too. Use the original file exported from the generator whenever possible.

Can I see Stable Diffusion or ComfyUI prompts?

Yes, if the original file still contains them. The checker shows the raw text of fields such as parameters, prompt and workflow, which may include the prompt, steps, sampler and seed.

How do I remove AI metadata from an image?

After the check, click “Remove metadata”. The tool losslessly strips text, EXIF, XMP, comments and C2PA Content Credentials in your browser, keeps the colour profile and orientation, re-checks the result and lets you download it. Nothing is uploaded or recompressed.

What are C2PA Content Credentials?

C2PA is an open standard for recording where content came from and how it was edited. This tool only detects whether a Content Credentials marker is embedded and does not verify its signature. Content Credentials alone do not indicate AI use.

Do I need to pay or sign in?

No. The AI metadata checker is free, needs no sign-in and uses no credits.

Image UpscalerUpscale JPG, PNG and WebP images to 2K or 4K with AI. GPT Image 2.5Explore GPT Image 2.5 generation, editing and use cases. GuidesPractical guides on choosing resolution, preparing product photos and print sizes.

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