Online tool

Black & White Wallpaper Maker

Upload · Adjust tone · Drag to frame · Live preview · Export

Click to choose an image or drop it here JPG / PNG / WebP supported. A clear original works best.
Output mode
Grayscale keeps tones; pure B&W is high-contrast, like ink comics.
Contrast1.0x
Higher = stronger black/white; lower = softer gray.
Brightness0
Positive brightens (whiter); negative darkens (blacker).
B&W threshold128
Pixels below the threshold turn black, above turn white.
Output device (resolution)
After uploading,
drag the image here to frame it
Ereader
How to use：The crop frame stays fixed—drag the image to reposition, scroll wheel / +− buttons to zoom; what is inside the frame is the final wallpaper. The sliders tune the black & white effect.