Remove White Background - Free Online | FunToolX
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Remove White Background
Upload an image, set near-white pixels transparent by a white threshold, and export a transparent PNG. Tolerance controls the range.
About this tool
Remove White Background is a free online tool. Auto remove the white background and export a transparent PNG.
After uploading an image, the tool will automatically detect and remove the white background. The tolerance can be adjusted: the lower the tolerance, only pure white (#FFFFFF) is removed, and the higher the tolerance will remove light-colored areas close to white. You can also adjust the smoothness of the edges to make the matting edges more natural. After confirmation, download a PNG image with a transparent background.
The implementation principle is to traverse all pixels and set white pixels with color values within the tolerance range to transparent (alpha = 0). Edge smoothing is achieved through alpha gradient to avoid jarring caused by hard cuts. It is all done locally in the browser through Canvas pixel operations.
It is suitable for converting white-based product drawings to transparent bases for e-commerce details pages and design material synthesis. It is also used to remove white backgrounds from scans or screenshots. Note that the effect may not be ideal for non-pure white backgrounds or complex backgrounds.
Online White Background Removal Tool turns the white background in the picture transparent, supports adjusting tolerance and edge smoothness, and outputs PNG format.