How to find out who shared your photo

Mark the photo before you send it: one copy per person, each with a note of who it's for. The mark is invisible and stays in the picture when it's forwarded, screenshotted or compressed by a chat app. When the photo shows up somewhere, check it for free and your note tells you whose copy it was.

Mark your photoCheck a picture you found

Which photos can the check trace?

Every copy you marked here before sending it. The note goes into the picture at the moment you mark it, so the trail starts with the copies you send from now on. Your first 3 pictures are free, with no account needed.

How do you mark a photo for each person?

Choose the photo on the home page, write who you're sending it to, and download the marked copy. Send that copy to that person. Repeat for each person: Sam gets one copy, Alex gets another, each marked with their own name. Each copy looks exactly like the original, and each one carries a different note.

What should the note say?

Who, how and when, in a few words: "Sam, sent by WhatsApp, Oct 2026". Only you can read the note later, with the receipt code you get when you download the copy, or from your account if you marked it while logged in.

What does the mark survive?

The mark stays in the picture when it's compressed for email or a chat app, resized, screenshotted, cropped or turned black and white. A copy that has been cut down hard is still recognized as marked here.

How do you check a photo you found?

Save it, or take a screenshot, and upload it to the free check on the home page. With your receipt code or your account, the result reads "Image marked!" with your note under it, so you know which person's copy it was. Without the code, the check gives you the day the copy was marked.

Does the service keep my photo?

Your photo is deleted as soon as the marked copy is ready. The service keeps a random code, the date and your note for each copy, encrypted, and it's hosted in the European Union under the GDPR, the EU's data protection law.