Alpha & Transparency Tools
Edit transparency, alpha thresholds, feathering, expansion, contraction, padding and matte fills directly in the browser. 25 tools are currently live in this section.
Alpha Threshold 25%
Convert low-opacity pixels below 25% alpha to transparent and the rest to opaque.
Open tool →Alpha Threshold 50%
Convert the existing alpha channel into a hard 50% binary transparency mask.
Open tool →Alpha Threshold 75%
Keep only pixels at or above 75% opacity in a binary alpha result.
Open tool →Set Image Opacity to 25%
Scale every pixel alpha value to 25% of its current opacity.
Open tool →Set Image Opacity to 50%
Scale every pixel alpha value to 50% of its current opacity.
Open tool →Set Image Opacity to 75%
Scale every pixel alpha value to 75% of its current opacity.
Open tool →Invert Alpha Channel
Invert transparency so opaque pixels become transparent and transparent pixels become opaque.
Open tool →Export Alpha Mask – Grayscale
Export the current alpha channel as a white-to-black grayscale mask image.
Open tool →Export Alpha Mask – Binary
Export the current alpha channel as a black-and-white binary mask.
Open tool →Feather Existing Alpha 1px
Soften an existing transparency edge with a one-pixel alpha blur.
Open tool →Feather Existing Alpha 2px
Soften an existing transparency edge with a two-pixel alpha blur.
Open tool →Feather Existing Alpha 4px
Create a broader four-pixel softness around existing transparency.
Open tool →Feather Existing Alpha 8px
Create a wide eight-pixel alpha feather for soft composites.
Open tool →Expand Alpha 1px
Expand opaque/semi-opaque regions outward by one pixel.
Open tool →Expand Alpha 2px
Expand the existing alpha silhouette outward by two pixels.
Open tool →Expand Alpha 4px
Expand transparent-edge foreground coverage outward by four pixels.
Open tool →Contract Alpha 1px
Contract the alpha silhouette inward one pixel to reduce edge halos.
Open tool →Contract Alpha 2px
Contract the alpha silhouette inward two pixels.
Open tool →Contract Alpha 4px
Contract the alpha silhouette inward four pixels for aggressive fringe cleanup.
Open tool →Trim Transparent Pixels
Crop away fully transparent outer rows and columns around the visible image.
Open tool →Trim Transparency + 5% Margin
Trim transparent surroundings and retain an additional five-percent margin around visible content.
Open tool →Add Transparent Padding 5%
Add transparent canvas padding equal to five percent of the larger image dimension.
Open tool →Add Transparent Padding 10%
Add a ten-percent transparent margin around the whole image.
Open tool →Flatten Transparency on White
Composite transparent and semi-transparent pixels onto a white background.
Open tool →Flatten Transparency on Black
Composite transparency onto a solid black background.
Open tool →About Alpha & Transparency Tools
Edit transparency, alpha thresholds, feathering, expansion, contraction, padding and matte fills directly in the browser. MediaZuno groups closely related utilities together so you can move between tasks without hunting across different websites.