Black & White Image
Upload a photo and FileTinker converts it to Black & White Image in your browser. Adjust the threshold for the exact contrast you want — your image is never uploaded.
How to make a Black & White Image
- Upload your image.
- Adjust the threshold to taste.
- Download the result.
About Black & White Image
Black & White Image forces every pixel to pure black or pure white using a brightness threshold, giving a bold, high-contrast, two-tone result — great for stencils, line art, scanned documents and striking monochrome effects.
Everything runs in your browser, instantly and privately — no upload, no sign-up. Adjust the threshold to control exactly where the cut between black and white falls.
Frequently asked questions
How do I convert an image to Black & White Image?
Upload your image and it's converted instantly. Drag the threshold slider to control how much of the image becomes black versus white.
Will it stay high quality?
Yes. The image keeps its original resolution; only the colours change. PNG and WebP keep their format; other formats save as high-quality JPEG.
Is my image uploaded?
No. Everything runs in your browser, so your photo never leaves your device.
Can I get plain grayscale too?
Yes — the same tool does standard grayscale; just switch the mode at the top.