The smallest 1x1 BMP file is 30 bytes, which has the advantage of still being displayable in my browsers. Here's a 1x1 red pixel: https://raw.githubusercontent

The smallest 1x1 BMP file is 30 bytes, which has the advantage of still being displayable in my browsers. Here's a 1x1 red pixel: https://raw.githubusercontent.com/mathiasbynens/small/master/bmp.bmp https://raw.githubusercontent.com/mathiasbynens/small/master... Check out the rest of the repo! This author, seemingly named Mathias Bynens, got interested in the smallest possible file in various formats. https://github.com/mathiasbynens/small/ https://github.com/mathiasbynens/small/