How many distinct shades of gray are used. Lower (4) = posterized blocky look; higher (64) = closer to continuous.

Image to Grayscale

Convert any image to grayscale — continuous shades, or quantized levels (4, 16, 64) for poster-style output.

Preview

How to use Image to Grayscale

Pick an image.
Choose continuous or quantized levels.
Click Convert and Download.

What is Image to Grayscale?

Continuous grayscale uses standard luminance weights for natural-looking results. Quantized levels (4, 16, 64) produce blocky, comic-book-style images good for print stencils or graphic effects.

FAQ

What are levels?: How many distinct shades of gray are used. Lower (4) = posterized blocky look; higher (64) = closer to continuous.

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