By the time he graduated from university, Munroe's "piles of notebooks" became too large and he started scanning the images. xkcd began in September 2005, when Munroe decided to scan his doodles and put them on his personal website.
Ülikooli lõpetamise ajaks olid Munroe „märkmikuhunnikud“ kasvanud liiga suureks ning ta hakkas pilte skaneerima. "xkcd" sai alguse 2005. aasta septembris, kui Munroe otsustas oma kriipseldused skaneerida ja panna need oma isiklikule veebisaidile.