AI Colorize Photo

AI Colorize Photo brings black-and-white and sepia photographs into colour. Upload a scan, wait about half a minute, and the photograph comes back with skin, sky, foliage, wood, fabric and food coloured the way the scene most likely looked. The network doing the work is DDColor, and it runs inside your browser — the photograph never leaves your device.

Your photo keeps every detail it had

Colour and brightness are separate things, and this tool only touches colour. A photograph is split into lightness and two colour channels; the model predicts only the colour channels, and they are recombined with your original lightness at full resolution. Every grain, highlight, wrinkle and scratch survives exactly as scanned — the result is your photograph wearing colour, not a repainted imitation of it. That is also why a 12-megapixel scan comes back at 12 megapixels even though the model itself works at 512 pixels: colour varies slowly across a scene, so carrying it up to full resolution is invisible, while doing the same to detail would not be.

Predicted, not recovered

This is the honest part, and it matters. A black-and-white negative records no colour at all, so nothing anywhere in the file says whether that jumper was red or blue. The model has learned what the world usually looks like — grass is green, skin is skin-coloured, skies are blue near the top — and applies that. It is convincing on everyday scenes and genuinely uncertain about man-made objects whose colour was arbitrary: cars, clothing, painted walls, signage. Where it guesses wrong, it guesses plausibly, which is the best any colouriser can honestly offer. Treat the result as a beautiful interpretation of the photograph rather than a recovered original.

The model is downloaded, not rented

No public browser-ready build of DDColor existed, so we exported one from the published research weights and serve it from this site as a 215MB file. Your browser downloads it once, caches it, and every later photograph — today or next month — colourises with no download at all. That is why there is no account, no credit system and no upload: the network is running on your machine, so there is nothing for us to meter and nowhere for your family photographs to go.

Nothing is uploaded. Tools on this page that use a neural network download the model to your browser once, cache it, and run it on your own machine from then on. That is why there is no account, no queue, no watermark and no daily limit — there is no server doing the work, so there is nothing for us to meter and no copy of your photo anywhere but your device.