Convert a PNG to Black and White
Turn an image into pure black and white — every pixel becomes either fully black or fully white, decided by a brightness threshold you control. This is true two-tone (not grayscale), ideal for line art, logos, scanned documents, and stencils. Runs in your browser.
Drop images here
Multiple files allowed
Threshold vs. grayscale
Grayscale keeps all the shades of gray in between; this tool forces every pixel to one extreme. Pixels brighter than the threshold turn white, the rest turn black. Raise the threshold to get more black, lower it for more white. It's the right choice when you need a crisp two-colour image — for a softer, shaded result use Grayscale.
FAQ
How do I make an image pure black and white?
Drop it above, set the threshold, and click Convert — each pixel snaps to black or white. It runs in your browser.
My line art has gray anti-aliased edges — can I clean them?
Yes — thresholding removes the gray fringe by forcing every pixel to black or white. Adjust the threshold until the lines look right.