T his study aimed at investigating the effect of using Webspiration on developing EFL critical reading skills among preparatory stage pupils. Participants (N = 18) were chosen at random from first year pupils at Elshaheed Hamad El-Saidy Preparatory School, El-May, Shebin El-Kom Educational Zone, Menoufia Governorate, during the second semester of  the 2016-2017 school year. An EFL critical reading skills test was developed and administered before and after the experiment. A Webspiration-based program was designed. The experiment lasted for six weeks during which in-class and out-of-class activities based on the use of Webspiration collaborative web-based concept-mapping tool were carried out by the pupils. Results revealed that the study group achieved significant gains in EFL critical reading skills. Thus, using Webspiration proved to have a positive effect on developing preparatory stage pupils' EFL critical reading skills.