Image Threshold Filter
Convert any image to pure black and white with an adjustable threshold slider.
How to use
Upload an image, drag the threshold slider until you like the balance, then download. Everything runs in your browser — no uploads, your files never leave your device.
Frequently asked questions
What does threshold do?
Every pixel darker than the cutoff becomes black, everything brighter becomes white.
What is it good for?
Bold graphic posters, stencil art, and cleaning up scanned line art.
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