Spectrum memories from grayscale to full colors, and watch the past shine again.
A model trained on millions of restorations infers true, era-accurate color — not a tint, the real thing.
Generate as many variations as you like. Only pay when a result is right. Previews are always free.
Grain, focus and original resolution stay intact. Color is added beneath the photograph, never over it.
Files travel over a 2048-bit encrypted connection and are deleted the moment processing finishes.


















Drag in any black-and-white image, up to 4096×4096. JPG, PNG and HEIC welcome.
Kolorize analyses tone, texture and context to rebuild color — in seconds, no settings to learn.
Compare against the original, pick your favourite pass, and download at full resolution.


Rediscover the photographs in the back of the drawer. Kolorize reads the light and texture of a monochrome image and infers the color that was always there.
No brushes, no masks — just a faithful, full-color rendering of the moment as it happened.


A straightforward three-step process produces several color interpretations. Slide between the original and each pass to see exactly what changed.
Choose the rendering that resonates most, and keep it — no commitment until you do.


The fastest way to understand the difference is to try it. Upload one photograph and judge the result for yourself — the preview costs nothing.
Colorizing my grandmother's photo album to take her back to her youth had always been a dream. Kolorize made it real in an afternoon.
I stumbled on this colorizer and it left quite an impression. It's become my go-to for adding color to black-and-white photos — consistently impressive.
A genuine game-changer. Its proficiency in converting black-and-white images into vivid digital renditions is truly remarkable — and the value is hard to beat.
JPEG, PNG, WebP, GIF and AVIF formats are supported. However, we will down sample the resolution to 4096x4096 if larger when using Kolorize. The file format of the downloaded file after processing will be in JPG.
We employ advanced proprietary AI technology, which, although takes a little bit more time than traditional methods, yields the best results.
Based on statistical principles, we colorize objects using the colors that have a higher probability of being their original shades. For example, a banana may be either yellow or green but is unlikely to be blue or purple. While this may not achieve a 100% reproduction of the original colors, it results in a reasonable approximation.
Certainly. The algorithms operate on every photograph, determining whether the initial photo was captured in black and white or color. Subsequently, they proceed to colorize or restore the colors accordingly.
Kolorize usually needs 3 to 8 seconds to add color or bring back colors in a photo. The time depends on how big the photo is and how much detail it has.
No, the entire process is automated and relies on specialized technology to accomplish the task without human intervention.
Credits can be used to download processed images, with each download costing one credit. It's worth noting that downloading the same processed image with the same resolution multiple times will not consume additional credits.
The credit is valid for two years.
Yes, you can. All colorized results can be used anywhere.
No account, no cost to preview. See your first restoration in seconds.