The increasing demand for minimal intervention in combination with restrictions in sampling and transportation of cultural heritage and archaeological objects has led to the development of a transportable (LMNTI) and a fully portable (LMNTII) instrument for their analysis and characterization, based on Laser Induced Breakdown Spectroscopy (LIBS). These instruments offer qualitative and semi-quantitative multi-element analysis ‘in-situ’ with no sample removal or preparation restrictions. The rapid data acquisition, the high spatial resolution of the technique, the ability to give information on the stratigraphy of the objects and the user-friendly software are key elements for their wide application in archaeometry and art conservation.