Image Alpha Viewer

Extract and inspect the alpha (transparency) channel of any image as a high-contrast grayscale mask. White pixels are fully opaque; black pixels are fully transparent; intermediate grays represent semi-transparency.

Why it matters

Designers and developers often need to understand or extract the alpha channel separately — for masking, compositing, debugging exports, or generating selection masks for image editors.

Features

• Renders alpha as a grayscale image
• Reports total transparent pixel count and percentage
• Downloadable PNG of the alpha mask
• 100% local processing

Use cases

• Verify transparency in PNG/WebP exports
• Extract alpha masks for editing software
• Debug rendering issues with semi-transparent layers
• Audit assets before publishing