Wallpaper Generator

What it makes

Pick a color — with the color picker, or by typing a HEX value such as #2B35A0 — and a size, and Save wallpaper makes a PNG image in which every pixel is exactly that color. The preview above has the image's own shape, so you can see a phone wallpaper as tall and narrow and a monitor one as wide.

Sizes run from 16 × 16 to 7680 × 4320. Common monitor and phone sizes are one press away, and This screen fills in the size your browser reports for the screen you are using — a report from the browser, not a measurement of the panel — which is usually the right size for a desktop wallpaper.

Made on your device

The image is drawn by your browser and saved straight from it. Nothing is uploaded, no server is involved, and ScreenTail keeps no copy. The file name says what it is — for example screentail-wallpaper-2B35A0-1920x1080.png — so you can find it again.

Before it is saved, the page checks the result: the image is read back to confirm its width and height, and its color is sampled at the corners and the center. Browsers differ in how large an image they can make, and phones in particular may refuse very large ones, so if yours cannot make the size you asked for, the page says so instead of handing you a broken file.

Why PNG

PNG keeps every pixel exactly as it was drawn, so the color in the file is the color you chose; a JPEG would shift it slightly. A single-color PNG is also a very small file, even at 4K. The file carries the standard sRGB color values; how they look depends on the screen showing them, which is why the same wallpaper can look a little different on your phone and your monitor.

Setting it as your wallpaper

The file is saved wherever your browser saves downloads. Setting it as the wallpaper is done in your device's own settings; a web page cannot do that for you. To work out a color first, try the Color Picker or the Color Converter.