Colorize Black & White Photos with AI

Bring old black and white photos to life with realistic, AI-generated color. Unlike other colorization tools that require signups, charge credits, or watermark your results, this tool is completely free with no limits. Drop a photo, get color in seconds.

Xenova/siggraph-colorization · ONNX
Loading model… Downloading colorization model from HuggingFace (cached after first load)
How it works: The image is converted to LAB colorspace. The neural network predicts the A and B color channels from the L (lightness) channel, then the result is merged back to RGB. Works best on photos with clear subjects — landscapes, portraits, street scenes.
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Drop a black-and-white photo or click to browse

Color photos will be converted to grayscale first

How It Works

  1. Upload a black and white or grayscale photo.
  2. AI analyzes the image and predicts realistic colors for every region.
  3. Preview the colorized result and download it at full quality.

Key Benefits

  • Free with no watermarks, credits, or usage limits.
  • Realistic, natural-looking colorization powered by deep learning.
  • Works on portraits, landscapes, historical photos, and family snapshots.
  • No signup or account required.
  • Download full-quality results instantly.

Frequently Asked Questions

How accurate are the colors?

The AI predicts the most likely colors based on patterns learned from millions of images. Results are realistic but may not match the original colors exactly — for example, a blue shirt might be colorized as green. The model excels at natural elements like skin tones, skies, and vegetation.

Can I colorize any black and white photo?

Yes. The tool works on portraits, group photos, landscapes, architecture, and more. Higher-resolution images with clear details tend to produce the best results.

Is this really free? Other colorizers charge credits.

Yes, completely free. No credits, no watermarks, no quality limits, no signup. Process as many photos as you want.

Will this work on old, damaged photos?

This tool adds color but does not repair damage like scratches, tears, or stains. For damaged photos, try our Photo Restoration tool first, then colorize the result.