Alpha Channel Extractor
View and extract the alpha channel from PNG images. Visualize transparency as grayscale, analyze alpha masks, and download the extracted transparency layer for editing.
or drop image here or paste
View and extract the alpha channel from PNG images. Visualize transparency as grayscale, analyze alpha masks, and download the extracted transparency layer for editing.
or drop image here or paste
Alpha Channel Extractor visualizes and extracts the transparency layer from PNG and WebP images. The alpha channel stores opacity information for each pixel - from fully transparent (0) to fully opaque (255). This tool displays the alpha channel as a grayscale image where white represents opaque areas and black represents transparent areas, making it easy to inspect and export transparency masks.
Upload any PNG or WebP image with transparency to analyze its alpha channel. Switch between Original and Alpha view modes to compare the image with its transparency mask. The tool automatically detects if your image contains transparency and shows statistics about transparent and semi-transparent pixels. Download the extracted alpha channel as a grayscale PNG for use in image editing software or compositing workflows.
In the extracted alpha view, pixel brightness indicates opacity level. Pure white (255) means fully opaque - the pixel is completely visible. Pure black (0) means fully transparent - the pixel is invisible. Gray values represent semi-transparency - commonly used for soft edges, shadows, glass effects, and anti-aliasing. The info panel shows exact counts of transparent vs semi-transparent pixels in your image.
Extract alpha channels when creating masks for compositing in Photoshop or GIMP. Debug transparency issues in PNG exports from design software. Analyze anti-aliasing quality on logo cutouts. Create selection masks from transparent images. Verify that PNG exports have proper transparency before publishing. Check if product photos have clean background removal with no semi-transparent edge artifacts.
The extracted alpha channel downloads as a lossless PNG at full original resolution. Grayscale output preserves all 256 levels of transparency information. Use the downloaded alpha mask as a layer mask in Photoshop, as a matte in video compositing, or import into 3D software as an opacity map. All processing happens locally in your browser - images never upload to any server.