images · alpha

Image Opacity

Set the whole image to a chosen opacity (0–100%) and save as PNG with a real alpha channel. Existing transparency is multiplied, not replaced.

Workspace Files stay on your device
A little guidance. A better result.

How to use Image Opacity

Set the whole image to a chosen opacity — real alpha channel, PNG out.

  1. Prepare your input

    Open an image.

  2. Use the workspace

    Choose opacity and inspect the transparency preview.

  3. Check your result

    Download PNG and test it over the intended background.

Know the limits

Opacity multiplies existing alpha; it does not recover opaque pixels from already transparent areas.

Where does my input go?

This browser tool processes your input on your device. Optional analytics is a separate choice; it is not needed to use the tool. Keep your original until you have checked the result.

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