One image or a batch
Source images
JPEG, PNG, WebP
Static images. Up to 4 MiB per file, 12 MiB total and 4 million pixels per image. At most six source images.
Grayscale Image
Remove colour while retaining luminance.
Open this toolRemoving colour changes how some labels and subjects can be distinguished.
Inspect tonal separation after conversion, especially where different colours have similar brightness.
Inputs and controls
Download format
Tool inputs
PNG, preserves alpha, JPEG, flattens alpha, WebP, server support needed
Quality
Tool inputs
Allowed range: 1 to 100
How to use
- Choose a static JPEG, PNG or WebP source. Check the displayed upload limits before processing.
- Set Download format and Quality. Review the selected units and options before preparing the output.
- Select Prepare image. Inspect the resulting preview, dimensions and file size, then download the output you need.
Why use this tool
The grayscale output keeps shades rather than reducing every pixel to pure black or white.
Before relying on the result
Compare the finished picture with its source. Grayscale retains intermediate tones. Thresholding uses only black and white.
Questions
Is grayscale the same as thresholding?
No. Grayscale retains intermediate tones. Thresholding uses only black and white.
What should I check before using Grayscale Image?
Prepare a supported source image and check Download format and Quality. Use the exact units shown beside the controls and replace any example values with your own inputs.
Source page last modified: 2026-10-04T18:22:34+00:00. This profile describes the tool; use its page to run it.
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