What a transparent background is (and how to make one)

A transparent background is the part of an image that holds no color at all. Those pixels are see-through, so whatever sits behind the image, whether a web page, a slide or a printed shirt, shows through them. A transparent background photo is really just the subject with nothing around it, and most of the time it is a PNG file. You can make one from your own photo with the tool above.

How an image stores transparency

Each pixel in an ordinary photo has three values: red, green and blue. Formats that support transparency add a fourth, the alpha channel, which records how opaque the pixel is. In the usual 8-bit PNG that is a number from 0 to 255: 0 is completely clear, 255 is completely solid, and anything in between lets part of the background show through.

Those in-between values make a cutout look natural. Along strands of hair, the edge of fur or the rim of a glass, pixels are only partly opaque, so the subject blends into whatever it lands on instead of ending in a hard, jagged line. The tool above keeps those soft edges as partial transparency.

Why transparent areas show a checkerboard

Because empty pixels have no color, most editors and viewers draw a gray-and-white checkerboard behind the picture to show where they are: wherever you see the checks, the image is empty. The pattern is only a display convention. It is not stored in the file, and when you place the image on a page or slide, that page shows through instead.

Which formats support a transparent background

There is no such thing as a transparent JPG, and changing a JPG into a PNG doesn't create transparency by itself: the background still has to be removed, as the page on converting JPG to PNG explains. SVG is a different case: it stores logos and drawings as shapes rather than pixels, and if you only have a logo as a picture, removing a logo's background gets you a clean PNG.

How to tell whether an image is really transparent

Fake transparent PNGs are common in image search results: the thumbnail shows a checkerboard, but the pattern is painted into the pixels and follows the image onto your slide. Before you use a transparent background image from a search, run three checks:

1. Put it on something dark. Place the image on a black slide, a dark document page or any colored area. Real transparency lets that color through; a fake keeps its grid.
2. Look at the file type. A JPG cannot store transparency, so a JPG showing a checkerboard is always fake. A PNG could be either, because the format allows transparency without guaranteeing it.
3. Zoom in. In most editors the transparency grid stays the same size on screen as you zoom. Checker squares that grow along with the picture are part of the picture.

A fake is still usable: open it in the tool above like any photo with a busy background, and check the edges of the cutout closely.

Where you need one, and where you don't

You need transparency whenever an image sits on top of something else and should blend in: a logo on a colored header that must also work in dark mode, a product dropped into a mockup, a portrait on a designed invitation. A picture that fills its own frame, such as a regular photo or the main image of a product listing (which marketplaces often want on plain white), is better off with a solid background, often as a smaller JPG.

Make a transparent background PNG from your own photo

You don't have to hunt for a transparent version of an image; you can make one. The remover at the top of the page cuts the subject out of your photo with an AI model that runs in your browser, so nothing is uploaded, and gives you a transparent background PNG at the original pixel size, free and without a watermark. For checking and fixing edges, see the guide to making a background transparent; for project ideas, the transparent background maker.