Free web tool
Split an image into separate red, green, blue, and alpha channel images.
Split an image into R, G, B, and Alpha channel visualizations and download each as a PNG. This helps inspect color casts, masks, and where information is concentrated in individual channels.
R, G, and B represent the three color components; A represents transparency. This tool visualizes each 0–255 channel value as its own PNG.
It is not exporting the original file structure unchanged. The outputs are deliberately simple images that make each channel easy to inspect.
Colorized mode shows R as red, G as green, and B as blue. Grayscale mode maps the same channel values to brightness.
Grayscale can make subtle intensity differences easier to compare even though the underlying channel data is identical.
The A channel is shown as white for opaque and black for transparent. The exported channel visualization itself is an opaque PNG so that the Alpha values remain visible.
For percentages and visible bounds, use Image transparency / Alpha checker.
If one channel is consistently brighter in a region, that region contains more of that component. Channel views alone still do not tell you whether the overall color is “correct.”
For the distribution and averages of all channels, use Image histogram analyzer.