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Gatefrog

Label AI images visibly

Put a visible "AI generated" notice on the image and write it into the metadata. This helps with labeling under Art. 50 of the EU AI Act, but it is not legal advice.

Drop your image here

or choose it (20 MB max)

Encrypted in transit · processed in Germany · deleted right after

Powered by BiGapi.dev, the file API for developers and AI agents

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Promo kit: images and QR code to post or print

For notice boards, newsletters or social media. Everything is created right on your device.

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How it works

  1. 1 Drag your image into the box or choose the file, also straight from Google Drive or Dropbox.
  2. 2 Choose the text, such as AI-generated, and the corner where the notice should appear.
  3. 3 Start processing. Your file is transferred encrypted and processed in Germany.
  4. 4 Download the result. Done, no sign-up and no watermark from us.

Frequently asked questions

What happens to my files?

Your file is transferred encrypted and processed in Germany only for this one conversion. It is deleted right after the result is delivered; the content is neither stored nor analyzed. For very sensitive documents, we recommend our tools where the file stays on your device, such as “Redact patient data”.

Does this meet the labeling requirement?

The tool adds a visible notice to the image and also writes it into the metadata. Whether that is enough for your case under the EU AI Act depends on how you use the image. It is not legal advice.

Are there limits on file size or page count?

Yes, so the tool stays free for everyone: up to 20 MB per file. On top of that there is a generous daily allowance. Once it is used up, you can continue the next day.

Is the tool free?

Yes. All tools on Gatefrog are free to use, with no sign-up, no installation and no watermark from us.

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