Make an image black and white
Turn image pixels into pure black or white using a threshold.Free to use in your browser, with no sign-in.
Drop an image hereor click to choose a PNG, JPG, or WebP file. Up to 20 MB.
How to make an image black and white with a threshold
1. Choose an image
Choose a PNG, JPG, or WebP file up to 20 MB, or drop it onto the editor.
2. Adjust the threshold
Drag the slider from 0 to 255. Pixels at or above the threshold turn white.
3. Download image
Click Download image to save the result in the original file format.
FAQ
It turns each pixel black or white. Pixels at or above the brightness threshold become white. The rest become black. JPG and WebP compression may soften the result.
Start with 128 on the 0 to 255 scale. Raise it for more black or lower it for more white.
Threshold creates flat black and white areas. Dithering uses dot patterns to keep the look of gray tones.
Use it to clean up scanned signatures and line art, make stencils, or create a bold graphic look.
Yes. Transparency in PNG and WebP files is kept.
The download keeps the original format. JPG and WebP use quality 92. PNG uses lossless compression. Effects that add a background can fill transparent areas.
No. Your image is processed on your device and is not sent to our servers.
No. All image tools are free to use, with no sign-in.
