FREE TOOLS
Image Grayscale Converter
Convert image colors to grayscale while preserving alpha.
PNG, JPEG, static WEBP, BMP, GIF first frame, static SVG shapes
PNG
Browser only
Your input and output are processed in this browser. They are not uploaded for processing. No account is required.
This tool needs JavaScript. If it does not load, refresh the page and try again.
How to use this tool
- Choose an image to convert to grayscale.
- Choose Process image.
- Review the result and download it. Reset clears selected input and output; changing a setting clears the old result.
Examples
Apply image grayscale converter to a local photo or icon and inspect the result.
Limitations
Processing is local; input and output are not uploaded.
20 MiB and 24 megapixels per image; at most 16,384 pixels per side. SVG input is limited to 2 MiB.
Animated WebP and PNG are not supported. GIF uses the first frame. SVG supports a strict self-contained static-shape subset; text/fonts, CSS, external resources and active content are rejected.
Stored pixel orientation is used: EXIF orientation is not applied. Browser color decoding and native encoding can vary.
Uses luminance weights 0.2126 red, 0.7152 green and 0.0722 blue on browser-decoded values. Alpha is preserved.