RCaNmodel is an R package dedicated to the development and exploration of time-dynamic food-web models. The associated user-friendly javafx GUI RCaNconstructor is specifically developed to facilitate the co-construction of such models with non-modellers. Together, RCaNmodel and RCaNconstructor ensure the traceability and replicability of food-web model developments, and provide a fast and efficient solution to handle the complex mathematical steps that arise from dynamic linear inverse modelling and polytope sampling in high dimensions. The software includes standard graphical outputs for the exploration of food-webs dynamics and the detection of trophic controls, which are key questions in trophic ecology.