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Image Threshold (Pure Black & White)
Set a threshold level and each pixel becomes either black or white depending on its brightness.
Frequently asked questions
What does the threshold value control?
It sets the brightness cutoff: pixels lighter than the threshold turn white and darker ones turn black.
Is this tool really free?
Yes — completely free, with no sign-up, no ads and no artificial limits.
Are my files kept or shared?
No. Processing happens on our servers, then the file is deleted immediately and an automatic cleanup removes any residue. Nothing is stored or sold.