ToolPouch

Grayscale Image

Convert colour images to black and white.

Processed locally

Drop a file here

Up to 200 MB · Nothing is uploaded

Runs in your browser with WebAssembly. Your images is never sent to a server.

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About this tool

Convert colour images to black and white.

How it works

  1. 01Paste your content or select a file
  2. 02The tool processes it locally in your browser
  3. 03Download or copy the result

Questions

True luminance-weighted grayscale conversion for natural-looking results.