RJDemetra package is an interface between R and JDemetra+, the Eurostat recommended seasonal adjustment software, offering full access to its seasonal adjustment routines. Several add-in packages: rjdworkspace, rjdqa, rjdmarkdown, ggdemetra, expand its features. This paper aims at describing and illustrating the functionalities of those packages, used stand-alone or in conjunction with JDemetra+ interface, thus showing how to take advantage of their complementarity, according to the user’s needs, be it mass production or detailed analysis.