Palette.fm (Colorizing Black-and-White Photos)
An AI tool that adds color to black-and-white photos. You can pick from over 21 color filters, or type keywords to steer the colors yourself. It lets you see how an old family photo or a historical image looks once it has color.

How to try it
Click "Get started for Free" to open the editor, then upload a photo or click one of the samples. Choose a filter, refine the keywords with the adjust icon, and press "Colorize" to get the colorized result. You can make previews without logging in, but free results are resized to at most 500x500px with a watermark in the bottom right, and the interface is English only.