PNG Mag

Image formats, compression, and licensed assets

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On-device image tools

Edge fringe cleaner

Reduce a known matte color in semi-transparent edge pixels.

Your files stay on your device. Processing never uploads them.

    Output settings

    Works on semi-transparent pixels only. Choose the original white/dark matte; opaque halos and missing details are not reconstructed.

    Choose a file to begin.

    Up to 30 MiB per image and 8 million decoded pixels. Outputs are 8-bit images; metadata is not copied. Animated inputs are treated as a single frame.