Photo Censor
Read the guide
Redacting a Screenshot: How to Hide a Phone Number Before You Share It
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About Photo Censor
Drop an image, drag rectangles over the parts you want hidden, pick blur / pixelate / solid bar, export. Real use cases: redact a phone number from a screenshot, blur a face in a photo, black-out a card number before sharing. All in-browser — the file never leaves your device.
Everything happens on your device. Close the tab and it's gone.