Remove White Background - Free Online | ToolXHub

After uploading an image, the tool will automatically detect and remove the white background. Tolerances can be adjusted: the lower the tolerance, only pure white (#FFFF) will be removed, and the higher the tolerance, the light-colored areas close to white will be removed. You can also adjust the smoothness of the edges to make the 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 with Alpha gradients to avoid dissonance caused by hard cuts. All this is done locally in the browser through Canvas pixel operations.

It is suitable for converting white-based product drawings into transparent foundations composed of e-commerce details pages and design materials. It is also used to remove white backgrounds from scans or screenshots. Please note that for non-pure white backgrounds or complex backgrounds, the effect may not be ideal.

The online white background removal tool turns the white background in the image transparent, supports adjusting tolerance and edge smoothness, and outputs PNG format.