While not the same thing, Bootstrapping and Lean Startups are quite complementary. Both cover techniques for building low-burn startups by eliminating waste through the maximization of existing resources first before expending effort on the acquisition of new or external resources. While bootstrapping provides a strategic roadmap for achieving sustainability through customer funding (i.e. charging customers), lean startups provide a more tactical approach to achieving those goals through validated learning.
But before going any further, I’d like to dispel some common misconceptions about both models: