How can I use AI tool for removing white background from image? (opens in new tab)

Many old photos on my Windows 10 PC have a busy or unwanted background, especially product photos, profile pictures, and images made for websites or social media. Removing the background can make the subject look cleaner and easier to use in a design.The challenge is finding a simple AI tool that can cut out the subject accurately without leaving rough edges around hair, clothes, or small details. Online tools are common, but uploading private images to random websites does not feel very safe...