✓ ClearMark

Invisible AI tags, removed

Your images.
No invisible tags.

When you make an image with Gemini or ChatGPT, it carries an invisible SynthID watermark and a C2PA record — and platforms read those to stamp your work “Made with AI”. ClearMark scrubs both out, right in your browser, so the file is properly yours again.

Clean my file — free Free forever · 10 images a day
✓ Processed on your device ✓ Nothing uploaded or stored ✓ Pixel-identical output

Clean a file

Drop an image, or click to pick one. PNG, JPG or WebP, up to 10 at once. Everything stays in your browser — nothing gets uploaded anywhere.

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Drop images here or

or paste an image (Ctrl+V)

What gets removed

SynthID signal

Google weaves this invisible watermark into the pixels of Gemini, Veo and Nano Banana images. Cropping or re-saving won't shift it — so we break it apart in the frequency domain, where it actually lives.

C2PA record

The signed “AI-made” tag attached to the file. We strip it out completely, along with EXIF and the rest of the metadata.

Generator metadata

Model names, prompts, tool fingerprints hiding in the file header. Gone — the file you download carries no record of where it came from.

How it works

  1. 1 · Drop your fileAn image from ChatGPT, Gemini, Nano Banana or any generator. It loads straight into your browser.
  2. 2 · We find the signalThe engine reads your image in the frequency domain and finds the watermark pattern hiding in the pixels.
  3. 3 · We rewrite it outSmall, targeted changes break the signal apart — while the picture looks exactly the same to your eyes.
  4. 4 · Download cleanA fresh file with no metadata, no C2PA tag, and a disrupted watermark — ready to post.

Honest note: no remover can promise 100%. SynthID is built to be stubborn, and detectors keep changing. ClearMark is best-effort by design — and we tell you how to verify it instead of asking you to trust us.

Free forever. No account, no card, no catch.

ClearMark is a free tool. Every browser gets 10 cleanings a day — the limit is there to keep it fast for everyone. No subscriptions, no ads, no uploads. That's it.

Clean a file now

Quick answers

Is my file uploaded anywhere?

No. Everything runs in your browser. Your file never leaves your device, and we keep no copy.

Will the picture look different?

To your eyes, no. The changes are far below what humans can see — that is the whole idea.

Is removal guaranteed?

No — and any tool that promises that is overselling. SynthID is designed to survive edits. We disrupt the signal as far as current methods allow, and we point you to Google's free detector so you can check the result yourself.

Is this legal?

Use it on content you own or have the rights to. Removing a watermark to misrepresent where content came from can break platform rules — that responsibility stays with you.

Read the full FAQ →