Replace color in image

Swap one color for another across an image, with tolerance and feathering.

The image stays in this browser. Nothing is uploaded or stored.

PNG, JPG, or WebP up to 25 MiB. RGB-distance matching; output is always PNG to keep the swap lossless.

How to use

  1. Choose an image.
  2. Enter the color to replace and the new color.
  3. Set tolerance, run, and download.

What it supports

RGB-distance matching in sRGB space, tolerance 0–255, feather 0–1 alpha blend; static PNG/JPG/WebP ≤ 25 MiB decoded ≤ 40 MP, output PNG. Not a chroma-key — spill and anti-aliased edges may show.

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