Convert Image to Black and White
Turn color photos into classic black and white.
Drop an image here
or choose files from your device
You can also paste an image with Ctrl+V
JPG, PNG, WebP, AVIF, HEIC, GIF · up to 100 MB
Your images are processed locally in your browser and are not uploaded.
Grayscale conversion uses perceptual luminance weights, so skies, skin and foliage keep natural brightness relationships. Fine-tune brightness and contrast for a punchier monochrome look.
How to convert an image to black and white
- Step 1
Add a color photo.
- Step 2
The image turns black and white — adjust brightness and contrast if you like.
- Step 3
Download the grayscale image.
Why use PhotoTools
Natural tones
Perceptual luminance weighting instead of a flat average.
Adjustable
Brightness and contrast controls for a moody or crisp result.
Private
Processing happens on your device.
Supported formats
Input
- JPG
- PNG
- WebP
- AVIF
- HEIC
- GIF
- BMP
- TIFF
- PSD
- RAW
Output
- JPG
- PNG
- WebP
- AVIF
Frequently asked questions
Does grayscale make the file smaller?
Slightly. Grayscale JPGs have no color detail to store, so they are often 10–20% smaller.
Can I undo it later?
No — color information is removed from the result. Your original file stays unchanged.
Is it free?
Yes. Browser tools on PhotoTools are free, unlimited and work without an account.
Are my images uploaded to a server?
No. This tool runs entirely in your browser using WebAssembly. Your images never leave your device, and nothing is stored.