Colorize Black-and-White Photos
AI photo colorizer that adds colour to black-and-white photographs in your browser via WebAssembly. The DDColor neural network paints natural skin tones, skies, foliage and fabrics; film-stock presets, a skin-tone slider, a reference-palette picker and a "fix wrong colours" control let you tune the result by hand — no signup and no watermark.
How to colorize a photo
Upload a black-and-white photo — JPG, PNG, WebP, HEIC or BMP
It colorizes automatically; drag the before/after slider to compare
Pick a film look, nudge the skin-tone slider, or drop a colour reference photo
Use "Fix wrong colours" to recolour or mute anything the AI got wrong
Download the result as PNG, JPG or WebP
Add natural colour to grayscale snapshots with a neural network
What this colorizer does
Frequently Asked Questions
Where does the AI run?
In your browser. The colorization model (~55 MB Standard, ~110 MB High) is downloaded once via ONNX Runtime Web and cached for reuse, then runs on WebGPU where available and falls back to WebAssembly on older browsers.
Is there a watermark or signup?
No. The colorized photo downloads at full resolution with no watermark and no account required.
Which image formats work?
JPG, PNG, WebP, BMP, GIF and (where the browser supports it) HEIC/AVIF. Output can be saved as PNG, JPG or WebP. Very large photos are scaled down to keep memory in check.
Can it colorize cartoons or anime?
Yes — switch the content type to Cartoon/Anime, which uses a model trained on line-art instead of photographs. It works best in a WebGPU browser; on devices without WebGPU it falls back to the photo model.
The colour looks off in places — can I fix it?
AI colorization is an educated guess and skin or saturated objects can be wrong. Use the skin-tone slider, drop a reference photo, or use "Fix wrong colours" to recolour or desaturate a specific hue across the whole image.
