Photos record when they were taken, down to the second and the time zone. This removes those timestamps from the file's metadata — it does not change anything printed on the picture itself.
The tool runs in your browser (JavaScript required). Nothing is uploaded.
Once the date-taken metadata is gone, a photo app has no capture date to read, so it usually shows the date the new copy was saved or downloaded instead. Your computer's file dates (created, modified) belong to the file system, not the photo, and are set when you save the copy.
No. A date stamp in the corner of the picture is part of the image pixels. This tool removes only the date and time stored as metadata.
Without a capture date in the file, photo apps fall back to the date the copy was saved. That date comes from your device, not from the photo's metadata.
Yes. Time zone offsets and sub-second timing are removed together with the capture, digitized and edit times, and so is the GPS timestamp.
On this page all private metadata is removed in one step, including location and device details if the photo has them. The result lists everything that was found.