What a photo can say about you
Most phones and cameras save extra information inside every picture, known as metadata or EXIF data. It can include the exact GPS coordinates where the photo was taken, the make and model of the camera or phone, the lens, the date and time, the program that edited it, an author or copyright line and settings such as exposure and ISO.
None of that is visible when you look at the picture, but anyone who receives the original file can read it. The tool lists what it found in each photo and shows a clear warning when a picture contains a location, so you know before you share it.
When to clean your photos
Selling a sofa, a bike or a phone online usually means posting photos taken at home. If the files keep their GPS data, a stranger could learn where you live. Cleaning them first takes a few seconds. The same goes for pictures of your children, of your house or of a rental you are listing.
It also helps when you send photos to an office, a school, an insurer or a landlord, when you share pictures in a forum or a group chat that keeps the original file, or when you publish work and prefer not to reveal the camera, the editing software or your name in the author field.
Clean copy without losing quality
For JPG and PNG files the metadata is removed without recompressing the image: the pixels stay identical, so there is no quality loss. In JPG files the color profile is kept so the colors don't shift.
There is one exception. Some JPG photos look upright only because of an orientation tag in the metadata. Removing that tag would show them sideways, so in that case the tool straightens the picture and saves it again at high quality. Other formats are converted to JPG or PNG without metadata. The file name of each result tells you which treatment it received.
Your photos stay on your device
The photos are read and cleaned in your browser. They are not uploaded to a server and nothing is stored, which matters for a tool whose whole point is privacy. It is free, with no account and no usage limit, on a phone or a computer.
When the photos are clean, "What else do you want to do?" can pass them to Compress image to make them lighter for a listing, or to Convert image if a website asks for another format.