Make a server icon
Turn any image into a Minecraft server icon. Crop it, zoom it, and download it ready to use.
Icon creator
Upload an image, position it in the square, then download it as a 64×64 PNG.
Drag the image to reposition it, and zoom to fill the square. Server icons must be exactly 64×64, so the square below is all that will be saved.
Preview
Actual size
64 × 64 PNG
Name the file server-icon.png and place it in your server folder, next to server.properties, then restart the server.