Memrise is an educational tool available both online and for mobile devices. Memrise uses flashcards and mnemonic techniques to aid in teaching foreign languages and memorizing information from other subjects, e.g. geography, law or mathematics. Memrise courses are created by its users through the process of crowdsourcing; therefore they are tailored to the individual needs of the users and may focus on the specific content of a particular coursebook or classes. The paper will attempt to present possibilities (...) of using memrise in teaching and learning legal English vocabulary during a tertiary course leading to TOLES certificate examination. The paper will look at various types of exercises which facilitate memorizing vocabulary, learning collocations, prepositional phrases, develop the skill of paraphrasing and defining legal terms of art in plain English. Application of the crowdsourcing method enables the learners to participate in the process of the course creation and constitutes for them a supplementary, out of class exposure to the target language. The second part of the paper will discuss the results of the research conducted by the author among her law students. The aim of the research was to investigate the students′ opinions about memrise as a tool which might facilitate individual learning of the specialist language, as well as to assess whether memrise may influence the test results achieved by the students during the legal English course. The paper will contrastively analyse the progress tests results achieved by the students who have used memrise to revise and recycle language material and those who have chosen traditional methods of learning. The research also attempted to address the question whether the students who had been the contributors to the content of memrise courses had performed better in tests than those who had only been the users. (shrink)