How to make the background of an image transparent
Upload your picture and the server runs AI segmentation to find the main subject. Everything else becomes transparent. In the preview, the subject appears on its own; when you download it as PNG or WebP, the area around it has no colour at all, which design tools usually show as a grey and white checkerboard.
Edges are soft rather than hard-cut. Pixels on the boundary of the subject get partial transparency, which helps the cut-out blend more naturally when you place it on a new background. If your upload already had transparent areas, they are kept as well.
PNG, WebP and JPG transparency explained
Transparency needs a format with an alpha channel. PNG is the most widely supported choice and works in office software, design tools and every browser. WebP also supports transparency and typically produces smaller files, which is useful for websites, but some older programs cannot open it.
JPG has no alpha channel. If you choose JPG, the transparent area is filled with white. That is fine for a white-background product photo, but not for a logo or sticker that needs to sit on a coloured page.
Common uses and limits
Transparent images are used for product photos on marketplaces, profile cut-outs, stickers, presentation graphics and YouTube thumbnails, where the subject is placed over a new design. They also make it easy to reuse the same photo on light and dark pages.
The tool is built to separate a subject from its surroundings, not to remove one exact colour. On photos of people, products and animals it is usually accurate. On flat artwork or a logo with a white box around it, results depend on how clearly the shapes stand out. Fine hair, glass and semi-transparent fabric may need a cleaner source photo for a good result.