BrushCue
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BrushCue Tool

Extract Red Channel from Image Online

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tap to choose a file

Go to Red Channel editor →

What you can expect

Given an input image, will extract just the red channel from an image. Useful for the stylistic effect or scientific analysis.

Red Channel animation preview

Related tools

More BrushCue tools that fit this workflow.

See all tools →
Green Channel animation preview

Green Channel

Given the image you provide, selects the green channel and sets the other channels to 0. Use for scientific analysis or an effect.

Blue Channel animation preview

Blue Channel

Given the image you provide, selects the blue channel and sets the other channels to 0. Use for scientific analysis or an effect.

Frequently asked questions

How to isolate the red channel of an image?
Select your file and the red channel is extracted automatically — green and blue channels are set to zero.
What is the red channel?
It represents the intensity of red light per pixel. Isolating it shows which areas of your image contain the most red.
How can I use the red channel creatively?
Use it for infrared-style effects, dramatic skies in landscapes, or as a starting point for custom tonal adjustments.
What file formats can I export?
You can export as PNG, JPEG, WebP, TIFF, BMP, or HEIC.
Is this tool free to use?
Yes — completely free, no account needed. Your images are processed entirely in your browser and never uploaded to a server. Downloads have no watermarks.

For developers

Use Red Channel from Python

Open the Jupyter notebook example to see how to run this tool from the BrushCue Python API, inspect the processing steps, and adapt the workflow for scripts or batch image jobs.

View Python notebook

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