The R package 'RChronoModel' gives a list of functions developped in order to treat the output of the MCMC algorithm computed with the softwares ChronoModel or Oxcal, especially regarding phases. We give a practical introduction to the package 'RChronoModel' using published data and comment the statistical results. We also introduce our new web application that allows users to take advantages of all these R functions without having to know R.