It is very easy to draw figures, texts, lines, arrows and boxes on a note paper with a squared grid. This is precisely what "Hüslipapier" allows you to do on a computer. On each square (In Swiss-German "Hüsli") and on each blue line of the paper, a symbol can be placed. It does not matter if this is a letter, an arrow, a line or a dot. Unlike other applications, Hüslipapier stores the contents not as vectors but rather more as a series of symbols. Nonetheless, the application is capable of easily creating vector-graphics out of these symbols. Currently, the file formats EPS, SVG and PDF are supported which are the most common technologies for scientific publications and web-graphics. Additionally, it is possible to automatically convert the symbols to ASCII-Art and (if desired) to prepend comment symbols. This makes it easy to write documentations for your software.