Reorder channels
Map RGB to any order including BGR. Your photos never leave your device.
- Your files are never uploaded
- Processed on your device
- Works offline
- Free, no sign-up
Drop your images here
Images · up to 10 files, 100 MB each
or paste with Ctrl+VLive preview
Settings
Lists where R, G and B go. BGR matches OpenCV byte order.
How it works
Add your images
Choose JPG, PNG, WebP, GIF, BMP, AVIF or HEIC images to reorder.
Pick the new order
Choose where red, green and blue go, such as BGR for OpenCV or GRB for creative shifts.
Download the results
Save each reordered PNG on its own or download them together as a ZIP.
What reordering does
Reordering remaps the three colour bytes without changing brightness structure. GRB shows green where red was, BRG cycles all three, and BGR swaps red and blue while keeping green in place.
A sunset in BGR turns blue skies orange and orange clouds blue, which makes swaps easy to verify at a glance. Grayscale areas stay grey because all three bytes match there.
Presets and OpenCV
Add images and pick one of six orders from the panel. RGB keeps colours normal for checking, RBG swaps green and blue, and BGR matches the byte order many OpenCV and machine-vision tools expect.
Channel swaps execute locally, so your images avoid any upload path. The mapping runs in page memory and only the saved PNGs remain.
When swaps help
Use BGR when a vision model or tutorial expects OpenCV order, or use creative orders for glitch art and false-colour inspection. Swapping is lossless apart from PNG re-saving.
For single swaps try RGB to BGR or BGR to RGB, which fix one direction with no settings. For ink or lightness work see the channel strip tools instead.
Questions
Are my images sent to a server?
No. Your images are remapped inside your browser. They never leave your device.
Which preset matches OpenCV?
BGR. OpenCV stores bytes as blue, green, red, so BGR here converts normal RGB images to that order.
Will whites and greys change?
No. Where red, green and blue are equal the swap keeps them equal, so greys, white and black look the same.
Is it free?
Yes. Free to use, with no sign-up, no watermark and no daily limits.
Related tools
More free tools that run on your device. No uploads