Last updated 07-23-2026
Category:
Reviews:
Join thousands of AI enthusiasts in the World of AI!
Kolorize
Kolorize is an online photo colorizer that turns black-and-white and vintage images into full-color restorations using proprietary AI models. Upload a photo up to 4096×4096, preview unlimited variations for free, and pay only when you download a result you want to keep.
The service handles family portraits, historical archives, and sepia or yellowed vintage prints. Processing typically takes three to eight seconds per image, with grain and resolution preserved rather than painted over.
Kolorize also offers video colorization and sells credit packs instead of subscriptions. Credits last two years, cover commercial use, and are charged only on download, not preview.
Proprietary AI colorization for black-and-white, sepia, and faded vintage photos up to 4096×4096
Unlimited free previews with pay-per-download credits and no subscription required
Files deleted after processing over a 2048-bit encrypted connection
Batch upload up to 20 photos on paid credit plans
Video colorization available with 1 credit covering 160 video frames
Free unlimited previews with no account required to try.
Pay-per-download credits valid for two years with commercial use included.
Handles sepia and yellowed vintage photos, not just pure black and white.
Free tier limits downloads to watermarked previews only.
Credit packs require login before checkout.
What file formats does Kolorize accept?
Kolorize accepts JPEG, PNG, WebP, GIF, and AVIF images. Photos larger than 4096×4096 are downscaled before processing, and downloads are delivered as high-quality JPG files.
How is Kolorize different from other photo colorizers?
Kolorize uses proprietary models trained for black-and-white restoration rather than generic tint filters. Results aim for era-accurate, realistic color instead of a flat color wash.
How accurate is Kolorize colorization?
The model predicts the most likely original colors from statistical patterns learned across millions of photos. Results are natural and historically plausible, though no colorizer can guarantee an exact match to the original scene.
Can Kolorize handle sepia or yellowed vintage photos?
Yes. Kolorize detects whether a photo was originally black and white, sepia-toned, or a faded color print, then adds or restores color accordingly.
How long does Kolorize take to process a photo?
Most photos finish in three to eight seconds depending on resolution and detail. Even large 4096×4096 images complete in under a minute.
What is a Kolorize credit?
Credits are spent only when you download a finished image. One credit equals one image download or 160 video frames. Previews are free, and re-downloading the same processed image at the same resolution costs nothing extra.