Invisible Internet Project (I2P) ndi gulu la netiweki losadziwika (lomwe limakhazikitsidwa ngati network yosakanikirana) yomwe imalola kulumikizana kosagwirizana, kulumikizana ndi anzawo. Malumikizidwe osadziwika amakwaniritsidwa mwa kubisa kuchuluka kwa magalimoto a wogwiritsa ntchito (pogwiritsa ntchito kubisa kumapeto), ndikutumiza kudzera pa intaneti yoyendetsedwa mongodzipereka ya makompyuta pafupifupi 55,000 omwe amafalitsidwa padziko lonse lapansi. Chifukwa cha kuchuluka kwa njira zomwe magalimoto amatha kudutsa, munthu wina yemwe akuwona kulumikizidwa kwathunthu ndizokayikitsa. Mapulogalamu omwe amagwiritsira ntchito wosanjikizawa amatchedwa "I2P router", ndipo kompyuta yothamanga I2P imatchedwa "I2P node". I2P ndi yaulere komanso yotseguka, ndipo imasindikizidwa pansi pa malayisensi angapo.