Map PNG colors to luminance-weighted gray values while retaining alpha. Use the focused controls, inspect the rendered preview, and export a new PNG without uploading the source image.
Private image workspace
Choose your PNG image
PNGYour preview will appear here
The image stays on this device throughout processing.
How to use it
Process a PNG in seconds
Choose a PNG image from your device and inspect its dimensions in the preview.
Adjust the available settings for convert png to grayscale and compare the preview with the source.
Download the processed PNG and check it at its intended display size.
Useful for
When to use this tool
Create a disabled-state UI icon
Prepare monochrome artwork for a report
Compare composition without color distraction
How to use it
Get a reliable result
Choose a PNG image from your device and inspect its dimensions in the preview.
Adjust the available settings for convert png to grayscale and compare the preview with the source.
Download the processed PNG and check it at its intended display size.
Useful for
Common workflows
Create a disabled-state UI icon
Prepare monochrome artwork for a report
Compare composition without color distraction
Examples
What to expect
Convert PNG to Grayscale example
Input
Convert a transparent multicolor icon to neutral gray
Output
A grayscale PNG with the original transparency and dimensions
Know before you start
Important limitations
Different source colors with similar luminance can become indistinguishable.
Grayscale conversion does not create a one-bit black-and-white threshold image.
PNG preserves transparency where the operation allows it, but photographic files can be larger than JPG or WebP.