Abstract: A modular furniture system is for a variety of purposes and includes at least one furniture base module consisting of a backrest element, a seat base module, two upholstery elements and a plurality of foot elements. The backrest element and the seat base module are capable of being connected and fastened by the foot elements without the use of tools, so that the furniture base module is capable of being packed ready for assembly in a shipping carton with low dimensions, in particular with dimensions up to 120 cm×60 cm×60 cm, and with a reduced weight, in particular with a weight of less than 30 kg.