100% Free In-browser AI AI Powered

Colorize Black & White Photos

Bring old photos to life with AI colorization. Upload a B&W photo and get a realistic colorized version in seconds — all in your browser, completely private.

Loading AI colorization model (~61 MB, cached after first use)…
Drop black & white photos here

JPG, PNG, WebP • Batch processing supported

Accepts: any image
Output: .JPG
Never uploaded·How to use this tool
Related tools: Photo Editor Remove Background Upscale Image Compress Image

How it works

Colorize photos in 3 steps

1

Upload your photos

Drop one or more black & white or faded photos. The AI model loads in the background on first use.

2

AI adds color

The DeOldify AI model analyzes each photo and applies realistic, historically plausible colors entirely in your browser.

3

Download results

Preview original vs colorized side-by-side and download individual photos or all as a ZIP.

FAQ

Frequently asked questions

This tool uses DeOldify, a deep learning model trained on millions of images to predict realistic colors for black and white photos. It runs via ONNX Runtime Web directly in your browser using WebGL acceleration. The model downloads once (~61 MB) and is cached for future visits.

DeOldify produces realistic, plausible colors based on its training data. Colors like sky blue, skin tones, and foliage are typically very accurate. For specific historic colors (exact clothing, car colors) the AI makes educated guesses — results vary by photo.

No. The AI model runs entirely in your browser. Your photos are never sent to any server. The only network request is downloading the model weights on first use.

The tool works best on true black and white or heavily desaturated photos. For color photos, the AI will attempt to enhance and re-colorize them, though results may differ from the original colors.

The first run downloads the 61 MB model (cached after). Each photo takes 5–20 seconds for AI inference depending on your device's GPU/CPU. WebGL acceleration is used when available for faster processing.

Free AI Photo Colorization — Bring History to Life

JustDownSize's photo colorizer uses the DeOldify deep learning model to add realistic, vivid colors to black and white photographs. The entire process happens in your browser — no uploads, no accounts, no limits.

Best types of photos to colorize

Old family portraits, historical photographs, vintage landscapes, and classic film stills all produce excellent results. The AI excels at skin tones, foliage, sky, and architectural elements.

Technical details

DeOldify uses a NoGAN training approach with a U-Net architecture. The quantized ONNX model reduces size to ~61 MB while maintaining most of the original quality. ONNX Runtime Web leverages WebGL for GPU-accelerated inference, making processing fast even on mid-range hardware.