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Channel Mixer
Drag files here orclick to upload
2 files, max 5M each
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About This Tool
Channel Mixer is a free, no-install online image channel tool that lets you adjust the intensity of the red, green and blue (RGB) channels individually, enabling channel mixing, color tuning and stylized effects. Everything runs entirely in your browser — images are never uploaded, keeping your privacy safe.
How to Use
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Upload images
Click "Add File" or drag images into the upload area; multiple images are supported.
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Adjust channel gain
On the right panel, drag the Red / Green / Blue channel sliders to adjust each channel's gain (positive to enhance, negative to weaken).
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Download and save
Click "Download Single" to save the current image, or "Download All" to download a ZIP of all adjusted images.
Use Cases
- Color correction: fix color-cast photos by balancing channels for more natural colors
- Stylization: boost a specific channel to create a vintage, cool or warm tone
- Channel separation: highlight specific color information for design or pre-press color work
Key Advantages
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Completely free
No sign-up or login required — open the page and use every channel adjustment feature.
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Local processing
Images are computed right in your browser and never uploaded, keeping your privacy safe.
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No install
No software to download; works cross-platform on Windows, macOS and mobile browsers.
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Lossless output
Only pixel colors are changed, exporting high-quality lossless PNG with no quality loss.
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Batch consistency
Once batch mode is on, the current channel settings apply to all images with one click for a uniform look.
How Channel Mixing Works
- Channel composition: an RGB image is composed of red, green and blue channels overlaid together, which together decide the color of every pixel.
- Gain meaning: a gain of
0keeps the original,+100doubles it, and-100zeroes it. - Adjustment effect: raising a channel's gain enhances that color, while lowering it weakens or even turns off that color.
- Cast correction: when a photo is color-cast, lower the gain of the dominant channel and raise the lacking one to balance the colors.
- Single-channel extraction: set the target channel to
0and the other two to-100to roughly view that channel alone as grayscale.
FAQ
Common browser-decodable formats such as JPG, PNG, WebP are supported; the output is PNG.
The gain of each channel ranges from -100 to 100: 0 means unchanged, +100 doubles that channel's intensity, and -100 turns the channel off.
The adjustment only changes pixel color values and does not involve lossy compression, so quality is preserved; the output is lossless PNG.
Yes. After enabling the Batch Process switch, the current channel settings will apply to all images; click "Download All" to get the ZIP.
Images are processed entirely in your browser and are never uploaded to any server, so you can use it with confidence.
With all three gains at 0 the image stays unchanged; if all are set to -100 the picture becomes entirely black.
A negative gain weakens the corresponding channel, which helps remove a color cast or create a cool/warm mood.
Set the target channel to 0 and the other two to -100 to roughly view that channel alone as grayscale.
The current version does not save presets, but with batch mode on the settings apply to all images for a consistent look.
Yes. The tool is responsive, so mobile browsers can also upload, drag sliders and download.
Only when all three gains are equal and low does it lean grayscale; normally adjusting the three channels separately yields a stylized color result.
Drag all three sliders back to 0 to restore the original colors; you can also re-upload the image and process again.
Content last updated：2026-07-10
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