# Image Remove White Background

Make the white background of an image transparent in one click. Every pixel whose red, green and blue values are all within the chosen tolerance of pure white becomes fully transparent, and everything else keeps its color and existing transparency. Perfect for product photos shot on white, scanned signatures, logos and clip art that you want to place on colored backgrounds or in designs.

## Frequently asked questions

### Which pixels become transparent?

A pixel becomes fully transparent when its red, green and blue values are all at least 255 minus the tolerance. With the default tolerance of 10, everything from 245 to 255 in all three channels is removed. Every other pixel stays fully visible with its original color.

### What tolerance should I use?

Use 0 to remove only pure white, which suits digital graphics and screenshots. Use 10 to 30 for photos and scans, where the background is slightly gray or has JPEG noise. Very high values also remove light colors such as pale yellow or light gray inside the subject.

### Will white areas inside my subject disappear too?

Yes, the tool works on color alone, not on connected regions, so white eyes, teeth, text or highlights inside the subject become transparent as well. For such images, lower the tolerance or fill those areas after downloading. For logos and signatures on white, this behavior is usually exactly right.

### Are the edges smooth?

Pixels are either fully transparent or fully opaque, so anti aliased edges keep a thin light fringe from the original background. This is invisible on light backgrounds and can be reduced on dark ones by raising the tolerance a little. No blur or feathering is added.

### What happens to images that already have transparency?

Existing transparency is kept. The new transparency from white pixels is combined with the original alpha channel, so already transparent areas stay transparent and partially transparent pixels keep their level unless they are white.

### What format is the result?

The result is always a PNG with an alpha channel, because JPEG cannot store transparency. Grayscale images are saved as RGB with transparency. You can convert it to WebP or AVIF afterwards with the Image Converter.

### Can I remove a black or colored background?

This tool only removes white and near white. For other colors, recolor the background to white first, or use a dedicated background removal tool. Images on black backgrounds can be inverted, processed and inverted back if the subject allows it.

### Which formats can I upload?

JPEG, PNG, GIF, WebP, TIFF and AVIF images up to 5 MB are accepted. Animated files use their first frame and images larger than 4000 pixels on a side are scaled down to fit.

### How do I get a clean transparent signature?

Scan or photograph the signature on white paper in good light, then use a tolerance around 30 to 60 so the slightly gray paper disappears while the ink stays. Increasing contrast with the Image Levels tool first makes the paper whiter and the result cleaner.

### What engine is used?

Near white pixels are first set to pure white and then the unflatten operation of the sharp library turns pure white into transparency. The process is deterministic, so the same file and tolerance always give the same result.

Your ad here?

[Email us](mailto:hi@dennn.is?subject=Advertising%20on%20OneClick%20Pro)

[Ad The agent-ready plugin suite for WordPress.](https://sleekwp.com/?ref=oneclickpro)