123Colorize

A colorization algorithm paired with a simple dashboard is the core of 123Colorize, an online AI photo colorizer for black and white images.

You upload an old photo, the algorithm adds color, and you download the result in full quality.

Everything runs in the browser, so there is nothing to install. 123Colorize also keeps your images on a secure cloud for 30 days, which gives you a window to come back and download files again without redoing the work.

That is handy if you are going through a box of family scans over several sittings, though you should save anything you want to keep longer.

There are several pricing plans for different amounts of use.

Paid options include HD colorization, output without watermarks and 24/7 support.

If you only have a handful of photos, compare the plans against how much you actually need to process.

The tool sits alongside other AI photo restoration and enhancement options, but its focus is colorizing.